Yaskawa MP2300S Basic Module - Manual (Page 386)

Appendix G MSG-SND/MSG-RCV Functions (Ethernet)
G.1 Message Transmit Function (MSG-SND)
A-64
( 8 ) Data Size (PARAM06)
Set the data size (number of bits or words) for the read/write request.
Be sure that the last data address determined based on the offset, data address, and data size does not go beyond the
scope of the data addresses.
The range of data addresses may differ, depending on the function code and communication device.
The following table shows the valid ranges of data sizes when using a MEMOBUS or Extended MEMOBUS protocol.
* 1. Specifies the number of bits
* 2. Specifies the number of words
Note: Data size in the table is represented as a decimal number.
Table G.3 Valid Range of Data Sizes (MEMOBUS, Extended MEMOBUS)
Function Code
Target
Data Type
Function
Valid Range of Data Sizes
Ethernet(218IF) Ethernet(218IFA)
00H – Unused Disable
01H B Reads coil state *1 1 to 2000
02H B Reads input relay state *1 1 to 2000
03H W Reads holding register content *2 1 to125
04H W Reads input register content *2 1 to 125
05H B Changes single coil state Disable
06H W Writes to single holding register Disable
07H – Unused Disable
08H – Loopback test Disable
09H W Reads holding register content (extended) *2 1 to 508
1 to 2044 (BIN)
1 to 1020 (ASCII)
0AH W Reads input register content (extended) *2 1 to 508
1 to 2044 (BIN)
1 to 1020 (ASCII)
0BH W Writes to holding register (extended) *2 1 to 507
1 to 2043 (BIN)
1 to 1019 (ASCII)
0CH – Unused Disable
0DH W
Discontinuously reads holding register
(extended)
*2
1 to 508
1 to 2044 (BIN)
1 to 1020 (ASCII)
0EH W
Discontinuously writes to holding register
(extended)
*2
1 to 254
1 to 1022 (BIN)
1 to 510 (ASCII)
0FH B Changes multiple coil states *1 1 to 800
10H W Writes to multiple holding registers *2 1 to 100