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INS-1500 & INS-2000 • 5403646 • REV F • 04/19
IntelliPurge
®
Wiring and Networking
1. The PLINK network is Potter’s propriety networking connection. It is a RS-485 network for serial communication
between the Nitrogen Generator (INS Series) and its Purge Valves (INS-PV).
2. PLINK requires 3 signal lines to allow communication to and from the Nitrogen Generator and the Purge Valves.
•
PL-A
•
PL-B
•
PL-G
Recommended CAT5 Stranded Cable
PLINK Wiring Schematic
•
PL-A is the blue wire
•
PL-B is the white/blue wire
•
PL-G is the orange wire
3. The PLINK network must use stranded, twisted pair wire for PL-A and PL-B. We recommend CAT5 cable with the
unused wires trimmed. It is acceptable to use a single twisted pair cable for PL-A and PL-B with the drain wire being
used for PL-G. Do not connect any shield to the drain wire.
4. Maximum number of INS-PV devices networked to an IntelliGen Series Nitrogen Generator is 26. The maximum wire
length for the network is 6500 ft.
5.
The PLINK network works as a Master and Slave network. The INS generator is defined as the Master.
The other 5 wires are not needed in this application. Cut unused wires.
Nitrogen
Generator
PL-A (Blue Wire)
PL-B (White/Blue)
PL-G (Orange)
PL-A (Blue Wire)
PL-B (White/Blue)
PL-G (Orange)
INS-PV 2
PLink 1
PLink 2
B
B
GND
GND
A
A
The first INS-PV in the network when connected to the nitrogen generator should be addressed INS-PV-2. The last INS-PV in the network must
be addressed as INS-PV-27. If Only ONE INS-PV is networked to the generator it must be addressed as INS-PV-27
Fig. 34
Fig. 35
