​SLC-500​ Series
​PLC Modules & Parts
SLC-500 (Legacy Mid-Range)🟠 Older modular platform, now phased out.
  • Typical Uses:
    • Was popular for small to mid-sized factories
    • Machine control before CompactLogix era
  • Key Features:
    • Modular rack-based system
    • Limited networking (DH-485, DH+, Ethernet on SLC 5/05)
    • Phased out but still supported in many plants
Example part numbers:
  • 1747-L532 (SLC 5/03 CPU)
  • 1746-IA16 (16-point AC input module)
📏 Physical Size:
Medium rack, similar to CompactLogix but older style and bulkier.
1. Controllers (Processors) – Bulletin 1747 Series
  • SLC 5/01 (DH-485)
    • 1747-L511 (1K Instructions)
    • 1747-L514 (4K Instructions)
  • SLC 5/02 (DH-485)
    • 1747-L524 (4K Instructions)
  • SLC 5/03 (Modular I/O, flexible comms)
    • 1747-L532
    • 1747-L533
  • SLC 5/04 (DH+, RS-232/DH-485, math co-processor)
    • 1747-L541
    • 1747-L542
    • 1747-L543 (Includes conformal-coated versions like 1747-L542-CC, 1747-L543-CC)
  • SLC 5/05 (Advanced modular controllers)
    • 1747-L551
    • 1747-L552
    • 1747-L553

2. I/O Modules – Bulletin 1746 Series
  • Digital Input
    • 1746-IA16 (16-channel AC)
    • 1746-IB16 / IB32 (24V DC sink)
    • 1746-IM16 (240V AC)
    • 1746-ITB16 (High-speed 24V DC sink)
    • 1746-IV16 / IV32 (24V DC source)
  • Analog Input / Output
    • 1746-NI8, NI16I (analog inputs)
    • 1746-NO8I, NO8V (analog outputs)
  • Specialty I/O
    • 1746-NR8 (RTD / resistance module)
    • 1746-NT8 (thermocouple input)
    • 1746-OA8 / OA16 (AC triac outputs)
    • 1746-OB16 / OB16E / OB32 / OB32E (DC sourcing outputs)
    • 1746-OBP8 (high-current DC output)
    • 1746-OV16 / OV32 (DC sinking output)
    • 1746-OW8 / OW16 (relay outputs)
    • 1746-OX8 (isolated relay output)

3. Chassis and Power Supplies
​
  • Chassis (1746 Series)
    • 1746-A4 (4-slot)
    • 1746-A7 (7-slot)
    • 1746-A10 (10-slot)
    • 1746-A13 (13-slot)
  • Power Supplies
    • 1746-P1
    • 1746-P2
    • 1746-P3
    • 1746-P4
    • 1746-P5
    • 1746-P6 / P7

4. Communication & Interface Modules
  • 1747-AENTR (EtherNet/IP Adapter with DLR)
  • 1747-SDN (DeviceNet Scanner)
  • 1747-SN (Remote I/O Scanner)
  • 1747-UIC (USB-to-DH-485 Converter)
  • Plus additional modules like scanner, messaging adapters found in product listings

5. Memory Modules & Firmware Upgrades
  • 1747-M13 (EEPROM – 64K)
  • 1747-M15 (EEPROM adapter)
  • 1747-OS302 (Firmware upgrade module for 5/03)
  • 1747-OS401 (Firmware upgrade module for 5/04)

6. Accessories & Cables
  • Cables: 1747-C10, C13, C20, CP3 (programming cable), etc.
  • Memory/Power: 1747-BA (Lithium battery), 1747-BAJMPR (battery jumper)
  • Others: Connector kits, slot fillers, filters, cover kits (e.g., 1746-NCONN10PIN, NDOORIO, NBC, etc.)

​Summary Table

Category

Controllers (1747)

I/O Modules (1746)

Chassis / Power (1746)

Communication

Memory / Firmware

​Accessories & Kits
Part Numbers​ Series

​PL511, L514, L524, L532, L533, L541, L542 (±CC), L543, L551, L552, L553art Numbers

​IA16, IB16/32, IM16, ITB16, IV16/32, NI8/16I, NO8I/8V, NR8, NT8, OA8/16, OB16/E, OB32/E, OBP8, OV16/32, OW8/16, OX8

A4, A7, A10, A13 chassis; P1, P2, P3, P4, P5, P6, P7 power supplies

AENTR, SDN, SN, UIC

M13, M15, OS302, OS401

​C10, C13, C20, CP3, BA, BAJMPR, NCONN*, NBC, NDOORIO, etc.