A.1 send message function (msg-snd), A.1.1 basic specifications – Yaskawa MP920 Communications Module User Manual

Page 231

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Appendix A System Functions

A.1.1 Basic Specifications

A-2

A.1

SEND MESSAGE Function (MSG-SND)

A.1.1 Basic Specifications

* Set the communications protocol (PRO-TYP) to MEMOBUS (=1) if

transmission is to be performed using the MELSEC or OMRON proto-
col. Protocol is converted by the communications device (217IF or
218IF).

Function

Name

MSG-SND

Function

Sends a message to the remote station on the line specified by the COMMUNICA-
TIONS DEVICE TYPE command (DEV-TYP). Supports multiple protocols.
The EXECUTION command (EXECUTE) must be held ON until COMPLETE or
ERROR turns ON.
Communications devices: 215IF, 217IF, 218IF, serial, SVB-01
Protocols: MEMOBUS, no-protocol

Function
Definition

I/O

Definitions

No.

Name

I/O Designation

Description

Inputs

1

EXECUTE

B-VAL

SEND MESSAGE command

2

ABORT

B-VAL

SEND MESSAGE ABORT command

3

DEV-TYP

I-REG

Communications device type
215IF = 1, 217IF = 5, 218IF = 6,
Serial = 8, SVB-01 = 11

4

PRO-TYP

I-REG

Communications protocol
MEMOBUS = 1*
No-protocol 1 = 2
No-protocol 2 = 3

5

CIR-NO

I-REG

Line number
215IF = 1 to 8, 217IF = 1 to 24
218IF = 1 to 8, Serial = 1 to 2

6

CH-NO

I-REG

Transmission buffer channel number
215IF = 1 to 13, 217IF = 1
218IF = 1 to 10, Serial = 1

7

PARAM

Address input

Leading address of setting data
(MW, DW, #W)

Outputs

1

BUSY

B-VAL

Message is being sent.

2

COMPLETE

B-VAL

Message transmission has been com-
pleted.

3

ERROR

B-VAL

Error has occurred.

MSG-SND

EXECUTE BUSY

ABORT COMPLETE

DEV-TYP ERROR

PRP-TYP

CIR-NO

CH-NO

PARAM

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