Omron SYSMAC CS1W-ETN21 Operation Manual page 177

Communicating between OMRON PLCs
RECV(098)
RECV(098) executed in user program
CPU Bus Unit
Service Cycle (local node)
CPU Bus Unit
service processing time (local node)
Transmission
processing time (command)
Normal Mode
Priority peripheral servicing
Parallel processing with syn-
chronous memory access
Parallel processing with
asynchronous memory
access
152
The transmission delay for the RECV(098) instruction can be calculated using
the equation illustrated in the following diagram.
Transmission Delays
(command)
Reception processing
time (command)
CPU Bus Unit
Service Cycle
Maximum transmission delay
Maximum transmis-
sion delay time
CPU Bus Unit Service Cycle (Local Node 1)
The processing time will be as follows, depending on the CPU processing
mode settings at the CPU Unit:
CPU processing mode
settings
For details, refer to the CPU Unit operation manual.
Transmission Delays
(response)
Transmission
processing time (response)
CPU Bus Unit
service processing time (remote node)
(remote node)
CPU Bus Unit Service Cycle (local node 1)
+ CPU Bus Unit service processing time (local node
1)
+ Transmission processing time (command)
+ Transmission delay (command)
+ Reception processing time (command)
+ CPU Bus Unit Service Cycle (remote node)
+ CPU Bus Unit service processing time (remote
node)
+ Transmission processing time (response)
+ Transmission Delays (response)
+ Reception processing time (response)
+ CPU Bus Unit Service Cycle (local node 2)
+ CPU Bus Unit service processing time (local node
2)
Processing time considerations
CPU Unit cycle time
0.2 ms + peripheral servicing time (1 ms max. of peripheral ser-
vicing time for each Special I/O Unit, CPU Bus Unit, peripheral
port, RS-232C port, or Inner Board)
Section 6-6
CPU Bus Unit
Service Cycle (local node 2)
CPU Bus Unit
service processing time
(local node 2)
CPU data set
Reception
processing time
processing time (response)