Hamilton Sundstrand Company Fuel Metering Valves XVG - Manual (Page 11)

8.1 RS-232 Connection (for XVG/eXVG with RS-232 interface)
PC COM Port
(DB9M Connector) XVG/eXVG Terminal
Block
Wire Color
(If XVG/eXVG is
supplied with optional
harness)
Signal Pin # Signal Pin #
SERIAL RX 2 SERIAL TX 39 WHT/ORN/BLU
SERIAL TX 3 SERIAL RX 40 WHT/ORN/YEL
SERIAL RTN 5 SERIAL RTN 41 WHT/ORN/GRN
Table 14: RS-232 Interface Connection
8.2 RS-485 Connection (for XVG/eXVG with RS-485 interface)
PC COM Port
Through RS232-
RS485 Converter
XVG/eXVG Terminal
Block
Pin # Signal Pin #
Wire Color
(If XVG/eXVG is supplied
with optional harness)
TD(B)+
TXD-485A
(SERIAL TX)
39 WHT/ORN/BLU
TD(A)-
RXD-485B
(SERIAL RX)
40 WHT/ORN/YEL
GND (Optional) SERIAL RTN 41 WHT/ORN/GRN
Table 15: RS-485 Interface Connection
9 XVG/eXVG Modbus Parameters
9.1 Setup Parameters
Set up parameters are write-able parameters used to setup and control all XVG/eXVG
operations. The following notes applied to all parameters:
- Register Number: This is the Modbus address of the register in the XVG/eXVG.
- All registers are readable.
- RO: Read-only. The register is read-only.
- W0: Open access for writing by any user.
- W1: A Customer or Factory level password must be entered before writing is
allowed.
- W2: A password must be entered and IDM_SETUPCONNECT (register no.
3005) set to 1 before writing is allowed.
- W3: A factory level password must be entered before writing is allowed.
- W4: A factory level password must be entered and IDM_SETUPCONNECT set
to 1 before writing is allowed.
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