Mitsubishi L02CPU User Manual page 169

Melsec-l series
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(1) Communication Pattern
Select the pattern from the following items.
Setting
item
Read the data of the specified destination device (transmission source) to the specified device of the host
Read
station (transmission destination).
Write the data of the specified device of the host station (transmission source) to the specified destination
Write
device (transmission destination).
Read the data of the specified destination device (transmission source) and write it to another specified
Transfer
destination device (transmission destination).
*1
The device data is not reflected in the CPU module where the parameters are set (the CPU module that relays the data).
(2) Communication Setting: Execution Interval (ms)/Request Contact
Select the communication timing from the following items.
Setting item
Data are communicated between the devices at a specified
execution interval.
Fixed
Execution
Execution interval is set.
Interval
Data are communicated between the devices only when
requested.
On
Data are communicated at the rising (off to on) of the device that
Request
Request
is specified as Request Contact. The on/off status of Request
*1
Contact
Contact is confirmed in the END processing.
*1
Request Contact cannot be specified overlapped with the following devices.
 Request Contact Device to Stop Fixed Interval Communication
 Execution Status Flag Device
 Source device when the host station is a transmission destination device
 Request Contact Device to Stop Fixed Interval Communication that is used for other setting No.
 Execution Status Flag Device that is used for other setting No.
 Source device when the host station is a transmission destination device, which is used for other setting No.
● Actual time of execution interval may be longer than the value of the setting because the time is affected by the specified
devices or Ethernet line congestion. For the preventive measures, refer to the troubleshooting described in the following
manual.
MELSEC-L CPU Module User's Manual (Hardware Design, Maintenance and Inspection)
● If latency time is set, data communication is started after the latency time has passed. (
(12))
CHAPTER 12 SIMPLE PLC COMMUNICATION FUNCTION
Description
*1
Description
Setting range
10ms to 65535ms (in increments
of 1ms)
X, M, B
Page 177, Section 12.1
167
12

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