Yaskawa MP2300S Basic Module - Manual (Page 428)

Appendix G MSG-SND/MSG-RCV Functions (Ethernet)
G.2 Message Receive Function (MSG-RCV)
A-106
( 3 ) Status (PARAM01)
Refer to G.2.4 Function Setting and Parameter Details for MEMOBUS and Extended MEMOBUS Protocols.
( 4 ) Connection Number (PARAM02)
Refer to G.2.4 Function Setting and Parameter Details for MEMOBUS and Extended MEMOBUS Protocols.
( 5 ) Option (PARAM03)
A unique value is output for each communication device. The output details are as follows:
( 6 ) Function Code (PARAM04)
Received function code is output.
The following table lists the function codes available when using the MODBUS/TCP protocol.
Note: 1. B: Bit type, W: Integer type
2. √: Available, –: Not available
3. Transmit and receive registers in the master operation mode are MW (MB) only.
4. In the slave operation mode, coil, holding register, input relay, and input register are MB, MW, IB, IW
respectively.
Communication device Output Details
Ethernet (218IF or 218IFA) A remote unit ID is output when MODBUS/TCP protocol is used.
Table G.28 Function Code List (MODBUS/TCP)
Function Code
Target
Data Type
Function
Protocol Type
Ethernet (218IF) Ethernet (218IFA)
00H – Not used – –
01H B Reads coil state √ √
02H B Reads input relay state √ √
03H W Reads holding register content √ √
04H W Reads input register content √ √
05H B Changes single coil state √ √
06H W Writes to single holding register √ √
07H
: – Not used – –
0EH
0FH
B Changes multiple coil states √ √
10H W Writes to multiple holding registers √ √
11H
: – Not used – –
15H
16H W Mask writes to holding register – √
17H W Reads/Writes multiple holding registers – √