9.2.4.6 Conclusion
If necessary, set the parameter RelayMode of each alarm relay to their initial mode.
9.2.5 Verifying the RS 232 or USB Communications
If your installation includes only one Hydran 201R Model i and if it communicates with
the host computer running the Hydran Host or Perception software, you must verify the
RS-232 link or USB link depending which one is used. Proceed as follows:
1. Connect the Hydran 201Ci-1’s RS-232 Computer Port connector (J10; item 7 in
Figure 4-7) to your PC’s RS-232 port. For wiring details, see Table D - 13. For USB
users, connect the Hydran 201Ci-1’s USB Computer Port connector (J16; item 8 in
Figure 4-7) to your PC’s USB port.
2. In the Communication submenu of the Hydran 201Ti, write down the current
settings, in order to be able to restore them.
3. Set the parameters as follows:
• Comm Channel = Supervisory Link
• Default Channel = Supervisory Link
• Baud Rate = 9600
• Gas Monitor ID = 1
4. To establish the communication and depending on the protocol configured in the
201Ti devices, start the Hydran Host or Perception software on the PC. See the
Hydran Host Software Manual or Perception User Manual for more information.
5. If the communication cannot be established:
• Ensure the H201Ti identification number entered in the Hydran Host software
corresponds to the one entered in the H201Ti (Gas Monitor ID parameter).
• Verify the wiring of the supervisory link cable.
• Verify the configuration of the Hydran Host software. See the Hydran Host
Software Manual or Perception User Manual for more information.
6. Disconnect all communication cables (supervisory link and RS-232 or USB to the
PC).
7. When the test is completed, restore the original communication settings in the
H201Ti as noted in the step 2 above.
9.2.6 Conclusion
This completes the incoming verification of the Hydran 201Ci-1.
1. Disconnect the H201Ti from the power outlet.
2. Disconnect the H201Ci-1 from the power outlet.
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