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2. Connect the MicroTech communications cables. Start with the OPM port B. Connect (daisy
3. Connect the power supply for the (2) unit ventilators and power.
4. Set the Hex address switches on the OPM to Hi = F and Lo = F. And connect the PC comm.
5. Install Unit Ventilator Open Protocol software onto PC and invoke the Monitor program with
6. Download the OPM01*.COD file to the OPM panel.
7. Next connect the PC cable to Port A of one of the free standing model 125's. Set the hex
8. Next connect the PC cable the other free standing model 125's. Set the hex switches to Hi=F
9. De-power the controllers, set the OPM and the two model 125's to have address switch settings
OPM Panel
Unit Vent #1 (M125)
Unit Vent #2 (M125)
10. Move the PC comm. cable back to the OPM, power the controllers, and establish
11. With communications within the network established, move the PC with the Monitor program
12. Connect the BAS interface to Port A of the OPM panel and establish communications.
13. Confirm each read only and read/write variable which has been set up within your interface is
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chain) the comm. cables to the (2) unit ventilators. For RS-485 pinout connections for each
model controller, see the McQuay International "Open Protocol Data Communications"
document version 1.2 dated Feb. 24th, 1991.
cable to Port A.
RUN.BAT. You should establish communications at 1200 baud.
switches to Hi=F and Lo=F , power reset the controller. Establish communications with the
Monitor program at 1200 baud. Download UV4PXK.COD to this controller.
and Lo=F and power reset the controller. Establish communications with the Monitor program
at 1200 baud. Download UV4PXK.COD to this controller.
as follows:
Controller
Hi Hex Switch
communications. Confirm that you have established communications to each of the 3
controllers in the network (you may use the "Network Diagnostics" feature of the Monitor
program or the "Read/Write Variables" feature of the Monitor program).
running to Port A of the unit ventilator and again confirm that you have established
communications.
properly interpreted and displayed by comparing the values which are available on the BAS with
the values on the Monitor program.
Lo Hex Switch
0
0
0
1
0
2
Resultant Address
00.00
01.00
02.00
MicroTech Unit Ventilator Open Protocol
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