IDEC FT1A Series User Manual

S MART AXIS P RO /L ITE U SER ' S M ANUAL FT9Y-B1378 10-13
10: U SER C OMMUNICATION I NSTRUCTIONS
DTR Output Control Signal Option D8106
Special data register D8106 is used to control the DTR (data terminal ready) signal to indicate the SmartAXIS operating status or
transmitting/receiving status.
The DTR control signal option can be used only for the user communication through the RS232C port 2 to port 3.
The control status of each port is allocated as shown below:
Bit 15
0
2
0
1
0
0
D8106
0
3
Port 2Port 3
D8106
2-bit Binary Value
Description
00
While the SmartAXIS is running, DTR is on whether the SmartAXIS is transmitting or receiving data. While the
SmartAXIS is stopped, DTR remains off. Use this option to indicate the SmartAXIS operating status.
01
Whether the SmartAXIS is running or stopped, DTR remains off.
10
While the SmartAXIS can receive data, DTR is turned on. While the SmartAXIS can not receive data, DTR remains off.
Use this option when flow control of receive data is required.
11 Same as D8106 = 00.
SmartAXIS
DTR signal
ON
OFF
Stopped Running Stopped
SmartAXIS
DTR signal
ON
OFF
Stopped Running Stopped
DTR signal
ON
OFF
Possible
Impossible Impossible
Receive

IDEC FT1A Series Specifications

General

Brand	IDEC
Model	FT1A Series
Category	Controller
Language	English