Viatran DL Series Analog Input Process Meter Instruction Manual
21
Figure 11. Voltage Input Connections
The meter is capable of accepting any voltage from -10 VDC to +10 VDC.
Modbus RTU Serial Communications
Serial communications connection is made to an RJ45 connector
labeled M-LINK on Figure 7. For interfacing to the meter, use the
350PDA1232 for RS-232, the 350PDA1485 for RS-485, or the
350PDA8008 for USB. The same port is used for interfacing with all
expansion modules (
e.g.
external relays, digital I/O).
Relay Connections
Relay connections are made to two six-terminal connectors labeled
RELAY1 – RELAY4 on Figure 7. Each relay’s C terminal is common
only to the normally open (NO) and normally closed (NC) contacts of the
corresponding relay. The relays’ C terminals should not be confused
with the COM (common) terminal of the INPUT SIGNAL connector.
Figure 12. Relay Connections
C
NO
NO
NC
NC
C
RELAY4
RELAY3
4
3
6
5
2
1
C
NO
NO
NC
NC
C
RELAY2
RELAY1
4
3
6
5
2
1
Содержание DL-ACB0N
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