Expansion Module for Communication RS232 and RS485 - ECO1
5 HARDWARE CHARACTERISTICS
The accessory ECO1 has the following hardware characteristics:
Isolated RS232 and RS485.
An optocoupled digital output.
Figure 5.1
shows the accessory ECO1.
The connectors on accessory can be observed in
Pin
1
2
3
4
5
6
7
8
9
* Do not connect the reserved pins.
10 SCA06
Figure 5.1: Accessory ECO1
Table 5.1: Specification of XA121 - RS232 and RS485
Connector XA121
Function
Ground
RX_232
TX_232
Reserved *
GND
Digital output –
collector
Digital output –
emitter
A (Data -) – RS485
B (Data +) – RS485
table
5.1,
table 5.2
and
Description
Imax = 10 mA
Vmax = 24 Vdc
ton = 25 µs
toff = 25 µs
table
5.3.