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1. OVERVIEW
1.
OVERVIEW
This user's manual describes the specification and handling of AJ65BT-64DAV digital analog voltage
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conversion module (abbreviated as AJ65BT-64DAV from here on) and AJ65BT-64DAI digital analog
current conversion module (abbreviated as AJ65BT-64DAI from here on), which is used as the remote
device station for the CC-Link system.
(1) AJ65BT-64DAV
This is a module which converts the digital values (16-bit encoded binary value) set in the PLC
CPU to analog values (-10V to 0V to 10V voltage), and performs an external output to four
channels.
(2) AJ65BT-64DAI
This is a module which converts the digital values (16-bit encoded binary value) set in the PLC
CPU to analog values (4mA to 20mA current), and performs an external output to four channels.
In this manual, the name which refers to both AJ65BT-64DAV and AJ65BT-64DAI is abbreviated as
"AJ65BT-64DAV/DAI."
1.1
Features
The AJ65BT-64DAV/DAI has the following features:
(1) One module can provide four channels of D/A conversion.
The AJ65BT-64DAV/DAI can produce output of analog values (voltage/current) to four external
devices.
(2) The analog-output enable/prohibit setting is possible for each channel.
The sequence program can specify whether to enable or prohibit analog output to the external
devices after the D/A conversion for each channel.
Analog output from the channel where the analog output is prohibited will be 0V or 0mA.
(3) You can make the analog output hold/clear setting at a PLC CPU stop or link error occurrence (all
channels batch).
Using the HOLD/CLR terminal, you can select whether to hold or clear the analog output at the
instant the PLC CPU is set to a STOP status or a link error occurs.
(4) Offset and gain setting
When a fine I/O conversion characteristic is required, the offset and gain setting of each channel
can be set without a volume control, enabling to modify the I/O conversion characteristic as
desired.
1-1
MELSEC-A
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