10 Buffer Memory
10.4 I/O signals to PLC
105
FX3U-16CCL-M User's Manual
1
Introduction
2
Specification
3
System
Configuration
4
Installation
5
Wiring
6
Introduction of
Functions
7
Data Link
Processing
Time
8
Parameter
Setting
9
Data Link
Procedure
10
Buffer Memory
10.4.2 [BFM#10] Output signal
1. Refresh command (b0)
Indicates whether or not the contents of the buffer memory for "remote output RY (BFM#352 to #383,
BFM#16896 to #16927)" are valid.
OFF: Not effective (Sends all OFF data.)
ON : Effective (Sends the data in "remote output (BFM#352 to #383, BFM#16896 to #16927)" in the buffer
memory.)
Caution
• Set to ON the write refresh command (BFM#10 b0) before starting up the data link.
• When the master station PLC is in the stop status, the write refresh command (BFM#10 b0) turns OFF.
2. Request for data link startup by buffer memory parameters (b6)
Starts up the data link in accordance with the contents of the parameters in the buffer memory.
For the signal timing, refer to Subsection 10.4.1.5) and 6).
Caution
When the parameter outside a setting range is set up, it becomes a parameter error and a data link can not
startup.
10.4.3 [BFM#14] Output signal monitor
Output signal monitor (BFM#14) can read the status set to the Input signal (BFM#10).
For details, refer to the Input signal (BFM#10) write value.
Remote input (RX)
Remote output (RY)
Master station Remote I/O station
Input
Remote input (RX)
Output
Remote output (RY)
Remote device station