17
9. Communication in EtherNet/IP
・
When an EtherNet/IP connection is established between the AD-8552EIP and the PLC, data is periodically
communicated by cyclic data. Cyclic data consists of "9-2 Output data" and "9-3 Input data".
・
Weighing values can be read and zero reset (rezero) is possible.
・
If you are using the following models, you can calibrate (Sensitivity adjustment) via EtherNet/IP.
When calibrating with a weighing device other than the following models, operate with the keys of the weighing device
while looking at the display of the measuring instrument.
Applicable
model
Sensitivity
adjustment
method
Outline of procedure
AD-4212C
External
weight
⋆１
While monitoring the balance status with the Input data(Instance100), it is
necessary to instruct data acquisition by Output data(Instance150) and to
load and unload the weight on the weighing instrument.
AD-4212D
External
weight
⋆１
Built-in
weight
After instruction by Output data(Instance150), the Input data (Instance100)
monitors until calibration is completed.
⋆１．
When changing the weight value to be used, refer to the instruction manual of the individual weighing device.
9-1
Preparing for communication
1. Set the following setting items so that the RS-232C of the weighing instrument and AD-8552EIP are the same.
Reference: AD-4212C
／
AD-4212D factory setting
Setting item
Weighing device
AD-8552EIP
Baud rate
2400*, 9600, 19200, 38400 bps
Data bit
7 bit*
Parity
EVEN*
Stop bit
1 bit*
Terminator
<CR><LF>*
Data output format
A&D standard format*
―
Data output mode
Settings for continuous
output of weighing values.
（
stream mode*
）
―
*AD-8552EIP factory setting
（
normally, the factory setting of AD-4212C / AD-4212D is the same.
）
2. Set the following setting items so that the host (PLC, PC, etc.) and AD-8552EIP are the same.
<Setting example>
Setting item
Host
（
PLC, PC, etc.
）
AD-8552EIP
IP address*
[192.168.0.1]
[192.168.0.2]
*
Make sure that IP addresses do not overlap in the connected network.
3. Refer to ”4-2 Connecting example”, “5-2 Connections”, “6-2 Connecting cable” for connecting.
・
Normally, when using the AD-4212C/AD-4212D, power can be supplied from the RS-232C terminal, so connecting
to the power terminal of the AD-4212C/AD-4212D is not required.
・
When connecting to the AD-4212D, connect to the AD-8552EIP using the AD-4212D display connector.
4. Turn on the device power.
