Wiring Connections For Options - Mettler Toledo IND570 Manual Del Usuario

Some examples of connecting external equipment are shown in Figure 2-33.
2.4.5.5.1. RS-485 Transmission Line Termination
The RS-485 network should include a terminating resistor, installed between the two lines at or on
the last node. The terminating resistor should match the characteristic impedance of the
transmission line, approximately 120 ohms. This terminating resistor is required when connecting
ARM100 modules to the port.
2.4.6.

Wiring Connections for Options

Options available for the IND570 terminal that require external connections include the following:
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2-22 METTLER TOLEDO IND570 Weighing Terminal Installation Manual
Figure 2-33: Sample COM1 Connections
Ethernet TCP/IP
COM2/COM3 Serial Ports
5 In/8 Out Discrete I/O (Relay)
COM2/COM3 Serial Ports with 2 In/5 Out Discrete I/O (Relay)
Analog Output
ControlNet
NOTES
1. USE ONLY SHIELDED CABLE
2. MAXIMUM CABLE LENGTH:
1000 FEET (304 METERS)
3. WIRE SIZE:
MAX. 18 AWG (0.823 mm2)
MIN. 24 AWG (0.205mm2)
30205319 | 04 | 08/2016