Yaskawa MP920 Communications Module - Manual (Page 34)

3 Communications Protocols
3.1.1 List of Communications Protocols
3-2
3.1 Overview of Communications Protocols
This section describes the communications protocols and the message communications methods.
3.1.1 List of Communications Protocols
This section gives an overview of the communications protocols used in message communi-
cations. The following communications protocols are supported for the MP900-Series
Machine Controller. The protocols that can be used depend on the Communications Module.
* 1. “Standard Serial” indicates the standard serial port on a CPU Module.
* 2. Some parts of the data format differ between the 215IF and the 218IF.
* 3. When the MEMOBUS protocol is used with the 218IF, only the Slave
(MSG-RCV) function can be used with the MP900-Series Machine
Controllers.
Note: Yes: Protocol supported by the Module.
No: Protocol not supported by the Module.
Table 3.1 List of Communications Protocols
No. Communications
Protocols
215IF 216IF 218IF Standard
Serial *1
Overview
1 Extended MEMO-
BUS Yes No Yes No Extends the functions of the
MEMOBUS protocol.
*2
2 MEMOBUS No Yes
Yes *3 Yes Yaskawa’s standard protocol
conventionally used with
RS-232C.
3 MELSEC-A No Yes Yes Yes MELSEC-A protocol for
connection to Controllers
manufactured by Mitsubishi
Electric Corporation.
4 OMRON No Yes No No OMRON communications
protocol for connection to
Controllers manufactured by
OMRON Corporation.
5 No protocol
(Through mode) Yes Yes Yes Yes Protocol used to implement
the custom protocols.