CJ1W-EIP21 Omron, CJ1W-EIP21 Datasheet - Page 322

• Manufacturer Part Number: CJ1W-EIP21
• Description: Ethernet I/P Module
• Manufacturer: Omron

Specifications of CJ1W-EIP21

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Message Service Transmission Delay
10-5 Message Service Transmission Delay
10-5-1 Maximum Transmission Delays (Excluding Delays in the Network)
SEND(090) Instruction
CPU Bus Unit Service
Cycle (Local Node)
294
This section explains the maximum transmission delay that can occur
between the execution of a SEND(090), RECV(098), or CMND(490) instruc-
tion in the ladder program until completion of the instruction. This delay does
not include the time required for the tag data link or the execution time of the
ladder program itself.
Use the following equation to calculate the maximum transmission delay that
can occur between the execution of a SEND(090) or RECV(098) instruction in
the ladder program until completion of the instruction.
Maximum transmission delay =
The following table shows the service cycle, which depends on the CPU Unit’s
CPU processing mode setting.
Normal Mode (See note.)
Priority peripheral servicing
Parallel processing with syn-
chronous memory access
Parallel processing with asyn-
chronous memory access
Execution of SEND(090)
in user program
CPU Bus Unit service cycle (local node)
+ CPU Bus Unit service processing time (local node)
+ Send processing
+ Transmission delay
+ Receive processing
+ CPU Bus Unit service cycle (remote node)
+ CPU Bus Unit service processing time (remote node)
Note CJ2 CPU Units support only Normal Mode.
CPU execution mode
CPU Bus Unit service cycle
(Local node)
CPU Bus Unit service processing time
(Local node)
Maximum transmission delay
Send processing
One CPU Unit cycle time
0.2 ms + peripheral servicing time (1 ms max. for
peripheral servicing of each Special I/O Unit, CPU
Bus Unit, peripheral port, RS-232C port, and Inner
Board)
Transmission delay
Receive processing
Processing time details
CPU Bus Unit service cycle
(Remote node)
CPU Bus Unit service
processing time (Remote node)
Section 10-5
CPU data set
processing