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Yaskawa MP3200 Troubleshooting Manual User Manual

Page 108

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5.2 Troubleshooting Message Communications

Message Communications Errors

5-33

T

roubleshooting Programming and Debugging

Receive Message Function (MSG-RCVE)

The parameters for the Send Message function are checked according to the following two communica-
tions protocols.
• Parameter List When Pro-Type (Communications Protocol) Is MEMOBUS

Parameter

No.

IN/OUT

*

Item

Description and What to Check

10

IN

Connection number

Set the remote station from which to send the message. (Set the
connection number that is set in the connection parameters.)
Make sure that the setting is within the following setting range.
218IFD: 1 to 20

11

OUT

Option

Gives the optional settings. The meaning of this option depends
on the protocol being used.

12

OUT

Function code

Contains the function code that was requested from the sending
side.

14

OUT

Data address, lower
word

Contains the start address of the data requested from the sending
side.
(Contains the word address for register access, or contains the bit
address for relay or coil access.)

15

OUT

Data address, upper
word

16

OUT

Register type

Contains the register type that was requested by the sending side.

17

OUT

Data size

Contains the size of read or write data that was requested by the
sending side. (Contains the size in words for registers, and in bits
for relays or coils.)

18

OUT

Remote CPU mod-
ule number

Contains the remote CPU number.

20

IN

Coil offset, lower
word

Set the offset to the word address of the coil.

21

IN

Coil offset, upper
word

22

IN

Input relay offset,
lower word

Set the offset to the word address for the input relay.

23

IN

Input relay offset,
upper word

24

IN

Input register offset,
lower word

Set the offset to the word address for the input register.

25

IN

Input register offset,
upper word

26

IN

Holding register off-
set, lower word

Set the offset to the word address for the hold register.

27

IN

Holding register off-
set, upper word

28

IN

Data relay offset,
lower word

Set the offset to the word address for the data relay.

29

IN

Data relay offset,
upper word

30

IN

Data register offset,
lower word

Set the offset to the word address for the data register.

31

IN

Data register offset,
upper word

32

IN

Output coil offset,
lower word

Set the offset to the word address of the output coil.

33

IN

Output coil offset,
upper word

Continued on next page.

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