Delta AS Series Manual page 371

10.1 Introduction
Function cards are extension cards such as analog input/output (AI/AO) and communication cards for the AS Series
PLC.
10.2 Specification and Function
10.2.1 AS-F232
The AS Series PLC is built with COM1 (RS-485) and COM2 (RS-485) ports. You can use the AS-F232 extension card for
communication other interfaces such as RS-232, PC, and so on. Except for the communication interface, however, the
communication functions are the same as the built-in ones. You can set up the communication port as either a slave or a
master node. After installing the extension card, use HWCONFIG in ISPSoft to configure the communication.
 Wiring example
AS-F232
+
(DB9 female)
10.2.2 AS-F422
Use the AS-F422 extension card to communicate with Delta HMI devices or other devices that use an RS-422
communication port. Other than the different communication interface, the communication functions remain the same as
the built-in ones. You can set the communication port as either a slave or a master node. After installing the extension
card, use HWCONFIG in ISPSoft to configure the communication.
 Wiring example for communication with Delta HMI DOPA series via COM2
10.2.3 AS-F485
With its own standalone communication port, the AS-F485 card can work independently and can be either a slave or a
master node. After installing the extension card, use HWCONFIG in ISPSoft to configure the communication.
 Wiring example
Terminal
resistor
(120 ohm)
DB9 male to DB9 female (standard cable)
AS-F422
De lta HMI
R+ Tx+
1
R- Tx-
2
T+
Rx+
3
T-
Rx-
4
COM2/DB-9
Master node Slave node
D+ D- SG D+ D- SG
Shielded
cable
Ch ap te r 10 F unc tio n Car ds
DOPA
s e r ie s
RT S-
6
3
RT S+
7
4
2
8
CT S+
9
1
CT S-
Slave node
SG D+ D-
Shielded
cable
Superior
+
machine
Terminal
resistor
(120 ohm)
1 0 - 3
10