RS232 Communication Plug-in Module
The location of the DIP-switches used to select the
type of analog input and output signal and termination
of RS485 network can be better viewed in
order to use the analog input and/or output with signal
in current, the switch S1 and related parameters must be
adjusted according to
control connections refer to chapter 3 - Installation and
Connection of the CFW500 user's manual.
Table 1: Switch configurations to select the analog input
and output signal type in the CFW500-CRS232
Input/
Signal
Output
Voltage
AI1
Current
Voltage
AO1
Current
Table 2: Switch configurations to configure RS485 and
Communications Switch
RS485
RS232
(*) Any other combination of the switches is not allowed.
8 | CFW500
table
1. For further details on the
Setting of
SwitchS1
S1.1 = OFF
0...20 mA P0233 = 0 or 2
S1.1 = ON
4...20 mA
S1.2 = ON
0...20 mA
S1.2 = OFF
4...20 mA
RS232 in the CRS232
Settings of
the Keys
S1.3 = OFF and
S1.4 = OFF
S1
(*)
S1.3 = ON and
S1.4 = ON
S2.1 = OFF and
S2.2 = OFF
S2
(*)
S2.1 = ON and
S2.2 = ON
figure
Signal
Parameter
Range
Setting
0...10 V
P0233 = 0 or 2
P0233 = 1 or 3
0...10 V
P0253 = 0 or 3
P0253 = 1 or 4
P0253 = 2 or 5
Option
RS485
Termination OFF
RS485
Termination ON
RS232 in normal
communication
mode
RS232 in firmware
programing
mode
A.2. In