MAWA-050A
7. External Communication Function
7-1
7. External Communication Function
(1) Overview
If the communication connector (D-Sub 9-pin, female) on the rear panel is used, conditions can be set
and monitor data and various statuses can be read out from an externally connected PC.
Explanation of communication connector (D-Sub 9-pin, female) signals
RS-485
Terminal name
Explanation
6 RS+
RS485 differential
9 RS-
RS485 differential signal –
(2) Data
Transfer
Item Contents
Communication type
RS-485, asynchronous, half-duplex
Communication speed
Select one of the following speeds on the Basic setting screen.
9600, 14400, 19200 and 38400 bps
Data format
Start bit: 1, Data bit: 8,
Stop bit: 1, Parity: Even number
Character code
ASCII
Check sum data
None
Connector
D-Sub 9-pin
Pin arrangement, 6: RS+, 9: RS-
Caution
There is a difference between numerical data read by the external communication function and
numerical display on the touch panel display.
For numerical data read by the external communication function, zeros are padded to display the
specified number of digits (zero padding).
For numerical display on the touch panel display, leading zeros less than the specified number of
digits are replaced with space to make it easy to see (zero suppression).
