Schneider Optics Web Embedded Server - Manual (Page 36)

The MSTR Instruction
26 840 USE 115 00 Version 1.0
Up to four MSTR instructions can be simultaneously active in a ladder logic
program. More than four MSTRs may be programmed to be enabled by the logic
flow as one active MSTR block releases the resources it has been using and
becomes deactivated, the next MSTR operation encountered in logic can be
activated.
3.2.1 Characteristics
Size Three nodes high
PLC
Compatibility z Standard in PLCs that have built-in Modbus Plus capabilities (Modbus Plus
functionality only)
z Standard in all Quantum PLCs with Modbus Plus functionality and/or TCP/IP
Ethernet option modules
z
Available as a loadable in chassis mount PLCs (Modbus Plus functionality
only)
Opcode BF hex
MSTR Operation Code TCP/IP Ethernet Support
Write global database 5 not supported
Read global database 6 not supported
Get remote statistics 7 supported
Clear remote statistics 8 supported
Peer Cop health 9 supported
Reset Option Module 10 supported
Read CTE(config extension) 11 supported
Write CTE (config extension) 12 supported