Yaskawa MP900 Series Ladder Programming Manual - Manual (Page 314)

5.10 System Function Instructions
5.10.6 Send Message (MSG-SND)
5-245
Instructions
5
3.
PARAMETER
If the RESULT is 4 (FMT_NG), one of the following error codes is given. Otherwise, the remote station address
is given.
4.
REQUEST
1 = Request
2 = Reception completed notification
„ Remote Station Number (PARAM02)/Serial
1 to 254: The message is sent to the station with the specified device address.
„
Function Code (PARAM04)
Set the MEMOBUS function code to send.
The function codes are listed in the following table.
Œ { : Can be set, ×: Cannot be set.
ΠWhen the target device is operating as the master, only MW and MB data can be read and written. When the target
device is operating as a slave, MB, MW, IB, and IW data can be read and written for coils, hold registers, input
relays, and input registers, respectively.
Code Error
00 No error
01 Station address out of range
02 MEMOBUS response monitoring time error
03 Number of retries setting error
04 Cyclic area setting error
05 Message signal CPU number error
06 Message signal register address error
07 Message signal number of words error
Function Code Setting
00 hex Not used. ×
01 hex Read Coil Status {
02 hex Read Input Relay Status {
03 hex Read Hold Register Contents {
04 hex Read Input Register Contents {
05 hex Change Single Coil Status {
06 hex Write Single Hold Register {
07 hex Not used. ×
08 hex Loopback Test {
09 hex Expanded Read Hold Register Contents {
0A hex Expanded Read Input Register Contents {
0B hex Expanded Write Hold Register {
0C hex Not used. ×
0D hex Expanded Read Nonconsecutive Hold Registers {
0E hex Expanded Write Nonconsecutive Hold Registers {
0F hex Change Multiple Coil Status {
10 hex Write Multiple Hold Registers {
11 hex to 20 hex Not used. ×
21 hex to 3F hex Reserved for system. ×
40 hex to 4F hex Reserved for system. ×
50 hex and higher Not used. ×