Legacy (Obsolete) PLC Product Lines

The S3000, M4000, and D4110 product lines are predecessors to the M4500 high performance PLC. These lines consist of the following:


S3000 Chassis

S3000 Chassis Based PLC for Large Applications

The S3000 was the original PLC platform developed by Systems Electronics Group in 1985. This system is configured in a classic rack/chassis configuration with a motherboard in which the power supply, processor board and a wide variety of I/O boards can be installed. The chassis can house up to 16 I/O boards including AC and DC digital I/O, analog I/O, intelligent I/O boards, a PLS/Resolver interface board, as well as communications board. The S3000 is compatible with the M4500 via the S3000 network.

The S3000 product line consists of the following:

  • S3004CHR: 4-I/O slot Rack/Chassis (64 I/O max)
  • S3008CHR: 8-I/O slot Rack/Chassis (128 I/O max)
  • S3016CHR: 16-I/O slot Rack/Chassis (256 I/O max)
  • PS3007: Power Supply
  • S3012-BR: Processor Board
  • S3016: Communications CO-CPU
  • S3021: Intelligent I/O Board (Timing Advance)
  • S3022: Intelligent I/O Board (Axis Positioning)
  • S3024: Intelligent I/O Board (General Co-CPU applications)
  • S3041: Resolver Interface/PLS
  • S3063: 16-point 10-30VDC Input (source)
  • S3064: 16-point 10-30VDC Input (sink)
  • S3065: 16-point 120VAC Input
  • S3073: 16-point 10-30VDC/1 Amp Output (source)
  • S3074: 16-point 10-30VDC/1 Amp Output (sink)
  • S3075: 16-point 120VAC/.75 Amp Output
  • S3076: 8-point 120VAC/1 Amp Isolated Output
  • S3077: Dual 4-to-1 Reed Relay Multiplexer
  • S3080: 4-In/4-Out Analog I/O Board

S3012 User's Manual
S3041 User's Manual


M4000: Module Based PLC/PLS

M4000: Module Based PLC/PLS for Smaller Applications

The M4000 is a series of PLC and PLS modules which incorporate many of the features of the S3000 but in a smaller packaging format. Applications for the M4000 include: high performance, low I/O count machine control; high speed front ends for large I/O count PLC systems; distributed control systems; high performance machine timing; etc.

The M4000 are packaged in an 8" X 4.5" X 5.5" module pre-configured in the following modules:


M4010/11/12 User's Manual
M4020 User's Manual
M4040/41 User's Manual
M1771-4021 User's Manual


D4110: PLC Module with Integrated Keypad/Display

D4110: PLC Module with Integrated Keypad/Display

The D4110 combines the I/O and PLC processor of the M4010 module with a built-in 24 key (3-rows by 8-column) keypad and a 2-line by 40-character vacuum fluorescent display. In addition to the 16 10-30VDC Inputs and 16 10-30VDC Outputs, the D4110 also incorporates two 10-30VDC interrupt inputs, a real time clock, and an additional RS-232/RS-422 user's port. The D4110 is packaged in a door mountable 11" X 6.75" X 3.25" module.


D4110 User's Manual