Message Specifications - Mitsubishi Electric MELSEC iQ-R Series User Manual

1.4

Message Specifications

This section shows the specifications of messages.
SECS-(SEMI E5)
Item
Stream/Function message definition
range
Transactions with same Stream/Function
Variable length message
transmission/reception
Reconnection Delay After Line Disconnection
Maximum number of transmission interleave
(Number of multi-transaction queues for PLC transmission)
Maximum number of queues waiting transmission
(Number of transaction queues for PLC transmission)
Maximum number of reception interleave
(Number of multi-transaction queues for PLC receiving)
*1
Other SECS functions
*1 Handled by the C Controller module.
1 SPECIFICATIONS
14
1.4 Message Specifications
Stream
Function
Transmission
Reception
Description
1 to 127
0 to 255
Possible (however, must define different transaction name)
For L,n, only transmit "n" lists.
For L,n, up to "n" lists can be received and the number of lists received ("n")
can be output to the control register.
1 to 60s
256
256
256
Scenario transmission/reception (execute more than one Stream/Function in a
row)