AERCO C-More Controls Manual June 2010 - Manual (Page 145)

C-More Controller for Benchmark, Innovation & KC
USER MANUAL
04/22/14 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 Page 145 of 162
OMM-0032_0E Phone: 800-526-0288 GF-112
APPENDIX B: MODbus Temperature Transmitter Installation
The Modbus transmitter will be installed at one end of the Modbus bus. If a ProtoNode will also
be used, the ProtoNode should be the last device on the RS-485 bus. In that case connect the
Modbus transmitter, between the last unit and the ProtoNode. The choice of which end to
connect the transmitter and ProtoNode depends on the most convenient mounting that is clean,
dry, etc. location that results in the shortest RS-485 bus length. The Modbus transmitter is
designed to be mounted on a 6”-10” din rail.
To connect the outdoor air and header temp sensor using the Modbus sensor
1. Install the Modbus transmitter (PN 65169) on the DIN rail.
2. Add the Modbus transmitter to the Modbus bus wiring at a convent end location.
3. Install the Power Supply on the Din rail.
4. Install the Modbus transmitter on the DIN rail.
5. Connect transmitter Terminal A (D-) to the negative lead of the Modbus bus.
6. Connect transmitter Terminal B (D+) to the positive lead of the Modbus bus.
7. Connect power supply + terminal to the V+ terminal on the transmitter.
8. Connect power supply - terminal to the V- terminal on the transmitter.
9. Connect the Header sensor (PN 69195) in screw terminal 1 and screw terminal 3 with
jumper wire from terminal 1 to terminal 2. There should be both the sensor wire and
jumper in terminal 1.
10. Connect the outdoor air sensor (PN 69XXX) in screw terminal 4 and screw terminal 6
with jumper wire from terminal 4 to terminal 5. There should be both the sensor wire and
jumper in terminal 4.
To configure a SmartMod HE359RTD100A MODbus Temperature Transmitter
(APN 65169)
In the following order
1. Attach a wire (jumper) from terminal C GND to D INIT.
2. Attach power and Modbus connections as described for production use.
3. Apply power to the device after attaching the jumper.
4. Using Omni or another Modbus program
a. Set Holding register #5 (40006) to 123 for the Baud Rate value (9600).
b. Set holding register #5 (40007) to 240 for the Modbus address (240).
c. Set holding register #10 (40011) to 25 for the Sensor Type selection (Pt1000).
5. Remove power (disconnect phoenix connector).
6. Remove the jumper wire.
7. Reattach power (reconnect phoenix connector).