GE Hydran 201 i Instruction Manual page 155

At least one H201Ti in a local network must be set with an identifi-
WARNING
CAUTION
cation number (Gas Monitor ID) from 1 to 5 inclusively. Each
H201Ti in a local network must have an exclusive number from 1 to
254. The H201Ti's are normally shipped with the Gas Monitor ID
number set to 1.
6. Start the Hydran Host software on the PC. See the Hydran Host Software Manual for
more information.
7. In the Network Settings menu of the Hydran Host software, set the network config-
uration to the Gas Monitor ID numbers that were assigned to each H201Ti in the
step 5 above.
8. In the Setup menu of the Hydran Host software, check the communication by
accessing the H201Ti('s). The Communications Status indicator (yellow, DS6;
item 23 in Figure 3-3 on page 3-5) flickers when the PC communicates with the
H201Ti('s).
9. In the Network Survey window of the Hydran Host software, verify the PC is
communicating with each H201Ti (there are no Does not answer warnings in the
Status text boxes).
10. If the communication cannot be established:
• Ensure the H201Ti identification numbers entered in the Hydran Host software
correspond to those entered in each H201Ti (Gas Monitor ID parameters).
• Verify the wiring of all supervisory link cables.
• Verify the wiring of the RS-485 local network link.
• Finally, disconnect the RS-485 link cable from all H201Ci's and reinstall the local
network, one H201Ci at a time.
11. In the Relays/Analog window of the Hydran Host software, change the Relay Mode
of each relay from Force OFF to Force ON and back; this should change the state of
the alarm relays from On to Off, thus confirming good communications through the
supervisory links. Following each step:
• Verify the state of the H, HH and OK LED's on each H201Ti.
Part 17997
Verification of Operation Prior to Installation
Rev. 6, March 2011 7-5