Emerson Vilter MicroVission - Common Register Setup to Control the Microvission (Compressor Control) Via Communications

C - 2
MicroVission Controller • Operation and Service Manual • Emerson • 35391MV 1.3
Appendix C • Remote Control and Monitoring
Three-Pair
• Belden P/N 8103 (with overall shield)
• Belden P/N 9730 (individually shielded)
• Belden P/N 8163 (individually shielded with overall
shield)
• Manhattan P/N M3476 (individually shielded with
overall shield)
• Manhattan P/N M39250 (individually shielded with
overall shield)
Two-Pair
• Belden P/N 8102 (with overall shield)
• Belden P/N 9729 (individually shielded)
• Belden P/N 8162 (individually shielded with overall
shield)
• Manhattan P/N M3475 (individually shielded with
overall shield)
• Manhattan P/N M39249 (individually shielded with
overall shield)
Common Register Setup to Control the
MicroVission (Compressor Control) Via
Communications
Register Setup and Control Scenario
The MicroVission panel rst needs to be placed in
REMOTE mode before the sending the Compressor
Control commands (Registers 40170 through 40182).
To do this, press the START button on the main page and
then the REMOTE button, see Figure C-3.
Modbus Register 40171 - Active Remote Control
Reading this register can be used to verify the Active
Remote Control mode, which was previously setup from
the Conguration screen. Writing to this register can
change the Active Remote Control mode, however this
is not common.
• 0 = None (internal local setpoints will be used to
control the compressor)
• 1 = Direct I/O (hardwired control - via digital inputs.
Refer to wiring diagram)
• 2 = Serial (serial communications via RS485 Modbus
RTU)
• 3 = Ethernet (Modbus TCP or Ethernet IP
communications)
Figure C-2. Serial Communication Ports on Single Board Computer