Com1Serial Port Connections - Mettler Toledo IND560 PDX Guia De Instalacion

Terminal
GND
The terminal cannot be used with cable lengths exceeding those given in Table
2-6, or with more than 14 PDX cells.
Table 2-6: Maximum PDX Cable Lengths
Total Cell-Cell Cable
(meters/feet)
130/245

COM1Serial Port Connections

The standard COM1 port includes connections for RS-232, RS-422 and RS-485. A
setup parameter must be selected to match the hardware connection used. This
parameter controls how the transmit and receive lines are controlled.
Figure 2-30 indicates which terminal is which signal on the COM1 port. Make the
connections as necessary.
Terminal
TxD
RxD
Gnd
TxD1+
TxD1-
RxD1+
RxD1-
Figure 2-30: COM1 Port Signals
IND560 PDX Installation Manual
Description Wire Color
PDX Network Ground
Home Run Cable
(meters/feet)
275/900
Signal
Transmit RS-232
Receive RS-232
Logic Ground
+Transmit RS-422, RS-485 Jumper to RxD1+ for RS-485
-Transmit RS-422, RS-485 Jumper to RxD1- for RS-485
+Receive RS-422, RS-485 Jumper to TxD1+ for RS-485
-Receive RS-422, RS-485 Jumper to TxD1- for RS-485
Black
Number of
PDX Cells
< 14
Notes
2-19