FOREWORD This manual provides technical information on the use of the FX- 16NP/NT-S3 special function block in connection with the FX programmable controller. Information concerning the MELSECNET/MINI-S3 network is covered by the manual of the master unit. Users should ensure that the details of this and other relevant manuals are studied and understood before attempting to install or use these units.

* I

CONTENTS 1 , SYSTEM CONFIGURATION 1 2. EXTERNAL DIMENSIONS AND SPECIFICATIONS 2 3. CONNECTIONS AND WIRING 4 4. STATION NUMBER SETTING 6 5. I/O DATA ASSIGNMENT 7 6. BUFFER MEMORY (BFM) ASSIGNMENT a 7. GENERAL DESCRIPTION OF THE MASTER UNIT (REFERENCE) 10 8. PROGRAMMING 14 9. TROUBLESHOOTING 20

10. TRANSMISSION CABLE SPECIFICATIONS 23 APPENDIX

A. COMMUNICATION TIMES 24

1 SYSTEM COMF IGURATIQN

. Maximum station-to-station distance Plastic fiber-optic cable: 50 m Twisted-wire pair cable: 100 m

Maximum number of stations 64 (8 input or output points per station)

Interface block FX-16NP-S3 for fiber-optic cable FX-16NT-S3 for twisted-wire pair cable

Number of occupying stations 4 (When the A series PC is in expansion mode)

Number of occupying I/O points 8 input points and 8 output points for the FX series PCs.

Communications information

And, 8 input or output points as a special ex- tension block. Total: 24 points

A to FX: 8 input points and 28 words FX to A: 8 output points and 28 words

1

The MELSECNET/MINI-S3 is an I/O and data transmission system for remote I/O units.

AJ71 PT32-S3 (for both ,Rberoptic cable This system uses a master station of

and twisted-wire pdr cable), APCCPU ( f o r t w i s t e d - w i r e p a i r c a b l e ) , or AlSJ71 PT32-S3.

Among venous kinds of slave stations connected to the master station, the FX- 16NP/NT-S3 interface units are used as the interface block for linking the FX s e r i e s p r o g r a m m a b l e c o n t r o l l e r s (hereafter called PCs). The FX series PCs are used as the local PCs connected to the A series master PCs.

The MELSECNET/MINI-S3 system hand- les ON/OFF signals of 8 input points and 8 output points as well as 16-bit data of 28 points respect ively for send and receive (in expansion mode).

The FX-lGNP/NT handles ON/OFF sig- nals only (I/O dedicated mode).

2. EXTERNAL DIMENSIONS AND SPECF 1CATDNS

(1) Performance Specifications (General specifications except withstand vdtage (fl) are the same as for the base unit.)

3

3. CONNECTIONS AND WIRING

(2) Connecting the transmission lines

Optical cable (optional): F-OFCM10 1Om (3Oft.) F-OFCM30 3om (9of t . ) F-OFCM50 5om (16ofl.)

One pair is required. station after To SD of the station before

Master rlatlon Optical fiber cable

Optical fiber cable

(Looped)

U s e twisted-pair of the fol- lowing core size:

B 0.2mm2 (0.31min~h.~) for

B 0.5mm2 (0.78rnln~h.~) for

To RDA of the station after To RDB of the station after

fiber-optic cables, t o m of the re-

vious station a n d m t o & o f the next station so that the whole link forms a loop.

Marking one end of the cable will help form the loop correctly.

When using twisted-wire pair cables. connect E

Connect t h e L jointly to all the FX-16NT-S3 units. Transmission lines must be laid in seperate cable runs from power lines.

5. I/O DATA ASSIGNMENT

Eight points of ON/OFF signals for-both input and output are transmitted and received between an FX- 16NP/NT-S3 and the A se- ries master PC. These signals on an FX series lo- cal PC are mapped as in- put and output relays in the table shown on the right.

More than one interface block can be connected to one FX series PC. The FX-16NP/NT-S3 can be lo- cated at any desired posi- tion.

More O W F F signels can be received by usbq buffer memory, which is explained later in this Manual.

7

6. BUFFER MEMORY (BFM) ASSEWEMT-

The f?X-16NP/NT-S3 interface block uses its built-in buffer memory (%-word RAM without battery back@) for communications with the A series PC. The buffer memory is assigned,with the numbers as shown below.

FX to A TRANSMIT BUFFER MEMORY (WRITE-ONLY) 1

BFM No.

#O

Memory data I

~

#1 Data is written from the FX series PC to each BFM by a TO instruc- tion. The mitten data is then transferred to the A series PC. #26

#27 *

#28 **

#29 ** Error code (See the following page.) #30 ** Information code: 7001 (NP-SS), 7002 (NT-S3) #31 ** Unusable

-- Set value of the station number setting switch

(1 to 61)

m

4 to FX RECEIVE BUFFER MEMORY '(READ-ONLY)

BFM No. #O *

Memory data

#1 * Data is written from the A sen'es PC to each BFM. The written

#26 * data is then transferred to the FX series PC by a FROM instruction.

#27 *

#28 **

#29 ** Error code (See the following page.) #30 ** Information code: 7001 (NP-SS), 7002 (NT-S3) #31 ** Unusable

Set value of the station number setting switch (1 to 61)

The BFM numbers indicated by the * symbol are write-only memory. Reading by the FX series PC by a FROM instruction is denied.

The BFM numbers indicateq-by the ** symbol are read-only memory. Writing from the FX series PC by a TO instruction is denid?:

,'* . . , I . I .

a

6. BUFFER MfMORY (BFM) ASSIGNMENT , .

BFM #26, #29, and #30 are used as follows;

BFM #28 Station number Error code numbers

This is the number (1 to 61) set by the station number setting switch (see page 6) of the FX-lGNP/NT- S3. This number is registered to the master station when the com- munications power source is turned ON. Any attempt to change this number while the power is ON is prevented.

BFM #29 Error code

As shown in the table on the right, an error code number correspond- ing to each error is written to this BFM.

BFM #30 Type code

The following type code number is written to this BFM.

FX-16NP-S3 K7001

>ode No. I Error descriDtion I Processina

K1 O0 m i n d unit err01 outside the range from 80 to Y31. Read error ( I ) The deoignated head address is A remote ter-

is detected by

(X24 is ON)

K1 o2 Command error: Unidentified data other than a and Cor- read/wrlte command is received. respending

K103 Designated number of words = 0 is received. remote ter-

code (address Data is received from the A series PC when data K1 o4

minal error

registered. By turning O N the remote ter- minal error

The number of write words is not equal to th.e num- detection reset K105 ber of received words when data is written from signal (Y24),

the A series PC. X24 is turned OFF and the error code is cleared.

K101 the master unit (2) The designated range exoeeds Write #31.

read is requested by the A series PC. 96 to 209) is

K106

A CPU error occurred in the FX PC. K107 The communications power source is OFF.

The error code Link error (time out)

R U N LED i s OFF. ERR LED is ON. K108

is cleared when the status is res-

K109 1 Link error (parity error)

R U N and ERR LEDs are O N .

tored to normal

9

7. GENERAL DESCRIPTtON OF THE MASTER U,MT(R.EFERENCE)

(2) I/O Signals in Expansion Mode The following lists the I/O signals when the master unit is installed to the head 1/0 numbers of X O O N O O of the A series PC.

Signal names

x02 X03 YO2 YO3

3 I X04 I X05 I YO4 I YO5 4 I X06 1 X07 I YO6 I YO7

6 I XOA I XOB I YOA I YOB 7 I XOC I XOD I YOC I YOD

I 8 1 XOE I XOF I YOE I YOF 1

12 I X16 I X17 I Y16 I Y17 13 I X18 I X19 I Y18 I YlQ 14 I X1A I X1B 1 Y1A I Y1B 1

Signal name X1 C

Hardware fault X20 Unusable X1F ‘Unusable X1 E Unusable X1 D Unurable

x21 During link

X22 Unusable

x23 Received data clear completion

x24 Remote terminal error detection

X25 Test mode X26 Link error detection

Li nb X27 communications

error X28 EPROM fault X29 Unusable X2A Unusable X2B Unusable X2C Unusable X2D Unusable X2E Unusable X2F Unusable

communications

11

Signal name

Unusable Unusable

recelved data

qE2+ Y27 Unusable

Link

start Y28 I communications

Y29 I Unusable FROMITO

Y2D I Error reset

7. GENERAL DESCRIPTION OF THE MASTER UNIT(REFERENCE)

OWOFF signal transmit data (BFM #10 to #41) ON/OFF signaf received data (BFM #I10 to U141)

#10

#11

to

#41

Remote station

I X7 I X6 I X5 I X4 1 X3 I X2 I X1 I X0 I

Word data (BFM #1100 to M099 x 2 channels)

1 Remote terminal No. I BFM No. I Y2C=OFF I Y2C=ON 1 Remote to Master I Master to Remote

No.1 I No.8 I #1100 to #1599 I #1600 to #2099 ~ ~~ ~-

N O . ~ 92600 to #3099 #2100 to #2599 No.9 N0.3

#4600 to #SO99 #4100 to #4599 No.11 N0.4 #%I600 to #4099 #3 100 to #3599 No. 10

N0.5 I No.12 I #5100 to #5599 I #5600 to M 0 9 9 No.6 I No.13 I M 1 0 0 to M 5 9 9 I M600 to #7099 N0.7 I No.14 I #7100 to #7599 1 #7600 to #SO99

13

#110

#111

to

#141

I

Station 64 Station 63

Remote station

Y7 I Y6 I Y5 I Y4 I Y3 I Y2 1 Y1 I YO

Remote terminal unit No. 1 to 7 end NQ. 8 to 14 are allocated with the same BFM numbers. Y2C is used to switch ON/OFF the channel.

Data in the Remote to Master BFM is readby the A-CPU by a FROM instructton. Data in the Master to Remote BFM is written from the A-CPU by a TO instruction.

8. PROGRAMMING

(2) General Description of the FROMnO instructions

On the FX PC On the A series PC Communications between the PC and the BFM Of 'PT-S3 Communications between the A series PC and interface block (remote station) are carried out by using the FROM/TO instructions. the BFM of the meter unit are carried out by

using the FROM/TO instructions. BFM to PC Contents of the instructions are the same as

those for the FX PC.

However, designate the head I/O number (higher

installed in the special block number area (1). PC to BFM two digits) of the slot in which the master unit is

I I I

(1) (2) (3) (4) In the example, HOO or KO0 shall be designated. Both the FX series PC and the A series PC can use 32-bit

A special extension unit number or block number. As- instructions and pulse-execution type FROM/TO instruc- signed from KO to K7 beginning with the one closest tions. to the base unit. BFM number Data transfer between buffer memories of remote stations Data transfer device head address for destination (D) through the M-NET/MINI-S3 link. or source (S). T, C, D, KnY, KnM, KnS, V or Z can be specified for source or destination. KnX, K or H can be specified for source only. Number of points of transfer data. For example, if K10 is designated for the data transfer from BFM #O to data register 1310, data is transferred from BFM (#0 to #9) to (Dl 0 to Dl 9).

and the master station is automatically carried out

8. PROGRAMMING

(3) Programming on the FX PC

-IF M8000

RUN monitor (XOO'tO xo7) to (Y20 to Y27)

(X20 to x27) to (YO0 to Y07)

---- ELK BFM Source Number

d points (DO to D9) to BMF(#O to #9)

---- ELK BFM Destina- Number

tion of points

BMF(#O to #9) to (Dl 0 to D l 9)

Inputs X00 to X07 of the FX PC are transferred to outputs Y20 to Y27 of the PT-S3. These are then transmitted to the A PC.

Inputs X20 to x27 of the PT-S3 received from the A PC are trans- ferred to YO0 to YO7 of the FX PC.

10 data registers W to D9 of the FX PC are transferred to 10 points beginning with BFM kt0 of the PT-S3 which is assigned as special block number 0.

10 points of data b.ghnkpg with BFM YO of the PT-S3 which is assigned as spechl blbdc nUtiibei O b transferred to 10 data reglsten Dl0 to Dl9 d!hb FX E.

Though the same BFM number is designated, the readwrite purpose of the BFM is distihguished (See page 8).

16

8. PROGRAMMING

(4) Programming on the A series PC XOO/YOO to 2F used in the following sequences are men- tioned on page 11. The actual value will vary according to the slot in which the master unit is installed.

2ommunications start processing

A i A I Y28 SET x20 Y28 I Y I Y

I I HW fault Communica- ~ommunications start

tions start

I/O refresh

In corn- munica-

tions

TO HOO K11 K4MO K1

FROM K1 K4M20 K111 HOO

MOV K2Y40 K2M28

Communications start Y28 is set under the condition that there is no H N fault.

(X30 to X37) are transferred to the higher 8 bits (station 4 area) of BFM #i 1 by transferring (X30 to X37) to (M8 to Mi 5) and then (MO to M i 5) to BFM #11 (See page 13).

Data in the higher 8 bits (station 4 area) of BFM #111 are trans- ferred to (Y40 to Y47) by transferring data from BFM #111 to (M20 to M35) and then (M28 to M35) to (Y40 to Y47), (See page 13).

8. PROGRAMMING ",

Writing word data from A to FX in the example shown here, the following transfer is executed;A- The BFM-numbers are assigned for each remote terminal unit as CPU (Dl 0 to D l 9) to Master station BFM (#1603 to #1612) to shown in the table on page 13. Remote station BFM (a0 to #9). To designate data trammission, firs4 write the command d a t e , p ! ! command

x0

and then write the object data.

4 TO/P) 1,- HOO 1 Kl6flOI K2 I K1 IT #1600 Write the write command code '2' I . . I I I I

K 2 to BFM #16W if1601 Write the head BFM number for writing of the

#1602 Write the number of words to be written.

remote station.

TO (P) HOO K1601 KO n # 1 6 0 4

KO to BFM #1601 $ Write area (when 10 words are written). E

--I TO (P) 1 HOO I It1602 1 K10 I K1 1 8 The transmission from the masterto the remote is executed by

turning ON the request to tzansmit YO. When It is completed, X0

reset. K10 to BFM #1602 (send completed) is turned ON. X0 resets YO, and then X0 is

4 TO(P) I HOO I K1603 I D l 0 I K10 11 This command should not be executed along with the read com- mand shown on the next page.

(Dl 0 to D l 9) to BFM (#1603 to #1612)

r , transmit

it RST I YO Transmission completion

18

8. PROGRAMMING

Reading word data from FX to A In example . & w n here, the folkwing trarrsfer i s . e x e ~ ~ ~ . R e - mote station B N (W to a) 0 tetas!~ station BFM ( t l101 to bl110) to ACPU (Do to Da).

MlOl I I I -

i t--j TO (P) K1 K1600 HOO Read

axnmand K1 to BFM #1600 E 3 TO (P) I HOO I Kt601 I KO I K1 11 KO to BFM Y1601

TO (P) K1 K10 K1602 HOO

K10 to BFM #1602

SET YO ~ransmisdon COmpleM

trailsmit

W M ( P mK) K1101

B N (# l lO l to t l110) to (DO to 0 9 )

To read wrrl ck@,.~fdlowing command data must be transmit- ted Mtehend.The BFM numbers are ass@ned as shown in the tableonpqe13.

#1600 Write the read command code ‘1’. #1601 Write the head BFM number for reading of

#1602 Wrlte thb number of words to be read. #1100 The number of words to be read is stored. #1101

t h e remcke station.

#1110 1 Read area (when 10 words are read).

The t m of mand data is executed by turning ON the iqmm!to transmit ”&: ~ 0. Read data is read f r o m the remote station W h maro%r s-, and X0 is turned ON. Afbr data is read b y & FROM hstru@on to the A-CPU, reset YO. This com- mandrhoddnotbeexbcutedabngwtththewriteaxnmand shamran~pcbvlarsI>Etge.

9. TROUBLESHOOTING . . I

'i START

I I p i . statuses normal?

L

* ' " ' ' . ' StAus

POWER (5V) LED unlit

DC24V (communica- tions) LED unfit

RUN LED unlit ERR LED lit

When the error h canwkd, the RUN LED is lit, the ERR LED is

error code is reset.

RUN LED lit ERR LED lit

. ,

Check and Aotlon ' '

1 When this LED is unlit, all signal transmissions are dis- abled, and I/O indicator LEDs are also unlit.

1 Check the power to the PC and connection of the extension cable.

1 When this LED is unlli, rmmunications with the master sta- tion is disabled, and the RUN and ERR LEDs are also unllt.

1 Check the power lines and tightness of terminals.

B When the link communications start signal Y28 (this output number varies acoordlng to the slot addresses where the master unit is installed) is turned ON in the normal state, the RUN LED of a remote station is lit and the ERR LED of the remote station is unlit.

B If the RUN LED is unlit and the ERR LED is lit, a link error (time over) has occurred. Error code K108 is generated; ex- plained on page 9.

master station. Follow the checking procedure explained on the next page.

1 If both the RUN and ERR LEDs are lit, a link error (parity error) has occurred. Error code K109 is generated; ex- plained on page 9.

1 In this state, the m a t e station is being ignored by the

1 Check for the sour,ce of ,abnorplal,olectrical noise.

20

9. TROUBLESHOOTING

NO

communications error?

Status

Station number setting is erroneous. (remote station)

Initial setting is erroneous. (master station)

A sequence program in the master station is erroneous.

ON/OFF signals are not correctly trans- mitted.

Check and Action

Station numbers are set on the unit panel between 1 and 61 using caution not to set a same number to more than one station. For example, if a remote unit is set to station 1 , that station occupies station numbers 1 to 4 , and these numbers must not be allocated to any other station.

Station numbers cannot be changed after turning on the power for communications (24V DC).

Check the EPROM is correctly installed. Check initial data such as the total number of remote stations, number of remote terminals, remote station number setting, unit type, and FROM/TO instruction head addresses.

Check that the mode setting pin is set in thempos i t ion . Check the operation mode setting switch for correct setting.

Check if the head 1/0 numbers of the master station are cor- rect.

Check if the communications start signal is turned ON. Designate a monitor station number with the monitor station switch of the master station, and check that the 1/0 in- dicator LEDs of the remote station conform with the 1/0 monitor display of the master station. (Designate the cor- rect station number for monitoring, remote station number +3).

If they do not conform with each other, check that the head 1/0 numbers and BFM numbers ( # l o to #41, #110 to #141) of the remote station are correctly assigned, and that cor- rect programs are executed in the master and remote sta- tions.

9. TROUBLESHOOTING

Status Check and Action

Check that the BFM numbers (#1 100 to #8099) are correct- ly assigned, and that correct programs are executed in the master and remote stations.

* Confirm the division o f the FROM area and TO area.

Word data is not correctly transmitted.

the EPROM. Compare the area addresses with the initial setting data of

Check that the command data program in the master sta-

Errors in the program can be checked by error codes K100 to K105 (see page 9) by monitoring BFM #29 at the remote station

tion is correctly executed.

When the FX PC has stopped

1 - Signals from the master station are received by the

, FX PC. remote station. However, they are not trensferred to the

The status immediately before the PC stops is transmitted ! to the master station. If memory hold mode (M8033) has 4 not been set, all ON/OFF signals are turned to OFF.

+ - The above applies also to the case of a CPU error of the FX PC.

When communications has stopped

* Communications between the FX PC and the remote sta- tion is carried out . However, communications between the remote station and the master station is not carried out.

The received signals in the remote station hold the status immediately before @e stop of communications. These signals can be reseqby using a sequence program on the FX PC.

22

I O . TRANSMISSION CABLE SPECIFICATIONS

(1) Fiber-optic Cables (2) Twisted-Wire Pair Cablee specification

The following pre terminated optical cables are available.

F-OFC-M10 10 m (30 f t . )

F-OFC-M30 30 m (90 ft.)

F-OFC-M50 50 m (160 ft.)

Cable type 1 Shielded twisted-wire pair cable Number of Dairs I 2 mils 01 more

I Conductor resistance (20 "C) I 88.0 ohmslkm or less I Capacitance (1 KHz) Charecteristic impedance (100

60 nF/km or less in average

KHz) *,o

23

.. .

Revisions

EDITION DATE Nov. 1992 July 1993

. . I

MMV k h E R REVISION JY992D34601 A

Text: Pages 3, 1 1 , 14, 19. JY992D34601 B First edition

Diagram: Pages 4, 7. Program: Page 19

c

4

Under no circumstances will Mitsubishi Electric be liable or responsible for any consequential damage that may arise as a result of the installation or use of this equipment.

~ ~~~ ~~ ____

All examples and diagrams shown in this manual are intended only as an aid to un- derstanding the text, not to guarantee operation. Mitsubishi Electric will accept no responsibility for actual use of the product based on these illustrative examples.

Owing to the very great variety in possible applications of this equipment, you must satisfy yourself as to its suitability for your specific application.

A MITSUBlSHl ELECTRIC CORPORATION -~ +IUD OFFICE: M(TSUB1SIII DENKI BLDG UARUNOUCHI TOKYO 1 0 2 TELEX: J2- CABLE MELCO TOKYO HlMOI WORK% W. oIIYoD* cm). H W I . JAPAN

JY992D34601 B HI-IB-086-B (9307) (SEN) @

Effectiio JUL. 1993 Spdfications are subject to change without notice.