440G-L07255 A-B  Power Board

The expansion I/O is addressed as slots 1…16 (the controller’s embedded I/O is addressed as slot 0). Power supplies and cables are not counted as slots. Modules are counted from left to right on each bank as shown in Figure 10 and Figure 11. For more information on addressing, see the MicroLogix 1200 and MicroLogix 1500 Programmable Controllers Instruction Set Reference Manual, publication 1762-RM001.

Expansion I/O errors represent failures of the I/O bus or the modules themselves. The error codes are listed in the MicroLogix 1200 and MicroLogix 1500 Programmable Controllers Instruction Set Reference Manual, publication 1762-RM001.

Most applications require installation in an industrial enclosure (Pollution Degree 2(a)) to reduce the effects of electrical interference (Over Voltage Category II(b)) and environmental exposure. Locate your controller as far as possible from power lines, load lines, and other sources of electrical noise such as hard-contact switches, relays, and AC motor drives. For more information on proper grounding guidelines, see the Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1.

The MicroLogix 1500 controller can be connected to a personal computer. It can also be connected to the DH-485 network with an Advanced Interface Converter (1761-NET-AIC), to an Ethernet network with an Ethernet Interface (1761-NET-ENI), or to a DeviceNet network with a DeviceNet Scanner module (1769-SDN). The controller can also be connected to Modbus SCADA networks as an RTU slave. See Communication Connections on page 47 for more information on connecting to the available communication options. The 1764-LRP processor provides an additional communication port. Each of the communication ports can be independently configured for any supported communication protocol. Channel 0 is on the base unit and Channel 1 is on the 1764-LRP processor.

ATTENTION: REMOVE POWER Remove system power before making or breaking cable connections. When you remove or insert a cable connector with power applied, an electric arc may occur. An electric arc can cause personal injury or property damage by: • Sending an erroneous signal to your system’s field devices, causing unintended machine operation • Causing an explosion in a hazardous environment Electrical arcing causes excessive wear to contacts on both the module and its mating connector. See your power supply and I/O module’s documentation for instructions on how to set up your system.

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