Advanced Axis AX-I/O-48 Panduan Petunjuk Instalasi - Halaman 7

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Advanced Axis AX-I/O-48 Panduan Petunjuk Instalasi

3 Module DIP Switch Configuration

3.1 Addressing (4 DIP Switches)

Each Switch LED Module must be connected to the Axis

located on the AX-CTL base card. As the Switch LED Modules reside on the AX-CTL P-BUS, each module must

be configured with a unique address (see figure 6). The address setting corresponds to P-BUS programming criteria

utilized within the Advanced PC-NeT, field configuration program.

As previously stated, up to 16 (sixteen) Switch LED Modules (any combination) can be connected to a single Axis

AX-CTL base card, P-BUS.

Note: Only 16 (16) Switch LED Modules can be connected to a single Axis

3.2 485 Comms EOL & Disable PSU Monitor (2 DIP Switches)

In addition to the DIP switches provided for module addressing, each Switch LED Module has two additional DIP

switches, DIP switch 6 and 7. DIP Switch 6 is for activating an onboard resistor to allow for AX-CTL base card P-

BUS (RS485) end-of-line filtering. Dip switch 7 is for allowing the monitoring of a remote power supply.

3.2.1 485 Comms (P-BUS) EOL

The P-BUS (RS485 communications bus) of the AX-CTL base card requires a 150Ω end-of-line filtering resistor to

be placed on the last (furthest) P-BUS module connected to this Style 4 (Class B) communications bus. If a Switch

LED Module is the last module on the P-BUS, set DIP switch 6 on the module to "ON", thereby activating the

internal 150Ω end-of-line filtering resistor (see figure 6). If the Switch LED Module is not the last module on the P-

BUS, leave DIP switch 6 in its "OFF" position.

Note: DIP switch 6 on the Switch LED Module should only be in set to its "ON" position if the Switch LED

Module is the furthest (last) P-BUS module from the Axis

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panels P-BUS (RS-485 serial communication bus),

Figure 6 – Switch LED Module DIP Switch

AX-CTL base card.