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