SLC 500 System

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I/O Modules and Hardware

Specialty I/O Modules

1746 Process Control I/O Modules

• 1746 Process Control I/O modules do not require external power.
  
• 16-bit resolution or 15-bits plus sign bit.
  
• Data format is 16-bit signed integer (natural binary).
  

Cat. No.	Number of Inputs/ Outputs	Analog Inputs	Analog Outputs	Slots	Backplane Current Load	I/O Connection Hardware
1746-BLM⋆  Blow Molding Module	4 digital inputs 4 analog inputs 4 digital outputs 4 analog outputs 1 sensor excitation output	0…10 mV	±10 mV	1	110 mA at 5V DC 85 mA at 24V DC	1492-CABLE010H and 1492-IFM40F
	Description — The blow molding module is an intelligent I/O module that can provide a maximum of 4 axes of closed-loop parison control on most types of blow-molding machines. You can use multiple modules on machines with more than for heads. Configurations include AC cumulator push-out control and three parison axis and two AC cumulator push-outs and two parison axes. The module is designed to work in a variety of plastic machine applications including AC cumulator machines, continuous extrusion machines, and reciprocating screw machines. The module performs its servo control task independently but receives its configuration and run-time information from the SLC processor.
1746-BTM‡  Barrel Temperature Control Module	4 temperature inputs (for 4 PID heat/cool loops)	Thermocouple, or ±50mV, or ±100mV	None	1	110 mA at 5V DC 85 mA at 24V DC	1746-RT32
	Description — The barrel temperature control module is an intelligent I/O module that can accommodate 4 heat/cool PID loops for temperature control applications. The module has 4 analog inputs, each of which functions as the controlled variable (C) input for a PID loop. The PID algorithm is performed on the module for each of the loops. The manipulated variable (M) output of each loop is sent from the module to the SLC processor’s data table as both a numeric value and as a time-proportioned output (TPO) signal. Your ladder logic can send either the M numeric value to an analog output module, or the TPO signal to a digital output module to close the loop. For very fast cut-off, your ladder logic can use the TPO signal transferred to the input image. The module provides auto-tuning of PID loops (optimized for tuning barrel temperature control loops), self-calibration (external reference required) self-diagnostics, and detection of input open-circuit (including thermocouple break).
⋆ This module is compatible only with an SLC 5/03, SLC 5/04, or SLC 5/05 processor in a local I/O chassis. ‡ This module is compatible only with an SLC 5/02, SLC 5/03, SLC 5/04, or SLC 5/05 processor in a local I/O chassis.

1746 Positioning I/O Modules

Cat. No.	Inputs	Input Frequency, Max.	Outputs	Module Update Time	Slots	Backplane Current Load	I/O Connection
1746-HSCE⋆  High-Speed Counter Module	1 count input (5V DC, 12V DC or 24V DC)	50 kHz for Range 32 kHz for Rate 50 kHz for Sequencer	4 outputs (5V DC, 12V DC, or 24V DC)	Sequencer mode: 1.8 ms Range mode: 3.9 ms Rate mode: 70.0 ms + rate period	1	320 mA at 5V DC	1746-RT25G
	Description — The high-speed counter module is used in control applications where the ability to detect high-speed machine or process motion is critical. It has a 16-bit counter to accept bidirectional input pulse frequencies of up to 50 kHz from encoders and other high-speed switching devices. It has 4 open-collector (sink) outputs so that the control loop is closed on the module without going through I/O or program scan delays. The module has three modes of operation: range, rate, and sequencer. Typical applications include packaging, material handling, flow monitoring, cut-to-length, motor speed control, and machining.
1746-HSCE2⋆  High-Speed Counter Module	4 single-ended or 2 differential quadrature inputs (5V DC, 12V DC or 24V DC)	1 MHz	4 outputs (5V DC, 12V DC, or 24V DC source)	1.5 ms	1	250 mA at 5V DC	1746-RT25G
	Description — The high-speed counter module is used in control applications where the ability to detect high-speed machine or process motion is critical. It has 4 counters, but only 2 can be used with quadrature inputs. When configured for class-1 operation with any SLC processor, it provides 16-bit counters with 8 input words and 8 output words. When configured for class 4 operation, it provides 24-bit counters for count ranges of ±8,388, 607 with 23 input words and 8 output words. It has 4 source outputs so that the control loop is closed on the module without going through I/O or program scan delays. Typical applications include packaging, material handling, flow monitoring, cut-to-length, motor speed control, and machining.
1746-HSRV SLC Servo Control Module	3 general purpose local fast inputs (24V DC)	300 kHz at 0° quadrature error	1 general purpose local fast output (24V DC)	2 ms	1	300 mA at 5V DC	1746-HT termination panel and 1746-HCA cable
	Description — This module provides an analog velocity command with programmable limits up to ±10V DC to interface with a variety of Rockwell Automation servo drives. It lets you execute and sequence individual motion commands or one of 16 motion profiles of up to 32 segments for complex motion profiles. The module operates in two modes: Configuration and Command. Compatible with SLC 5/03, 5/04, and 5/05 processors. It does not function in an I/O chassis remote from the processor.
1746-HSTP1 SLC Stepper Controller Module	Differential (5V DC) encoder, single-ended (12…24V DC) auxiliary	250 kHz	Digital output for translator	4 ms	1	200 mA at 5V DC 90 mA at 24V DC	—
	Description — This module provides a low-cost solution for a single-axis, open-loop application. The module can provide an absolute position of over ±8,000,000 increments, and pulse-train velocities of up to 250 kHz. The module is compatible with translators with differential inputs, single-ended TTL and opto-coupler interfaces. The module is configurable for pulse train and direction bit or clockwise/counter-clockwise pulse-train outputs. The module operates in three modes: Configuration, Command, and Diagnostic. Digital encoder and auxiliary (home limit switch; home proximity; CW travel limit; CCW travel limit; pulse-train enable; emergency stop) inputs. It is compatible with SLC 500, 5/01, 5/02, 5/03, 5/04, and 5/05 processors.
1746-QS⋆  Synchronized Axis Control Module	4 linear displacement transducers	220 inches at 0.002-inch resolution	4 analog outputs (±10V DC)	2 ms	1	1000 mA at 5V DC 200 mA at 24V DC	1492-AIFMQS and a cable‡
	Description — The 1746-QS module provides closed-loop synchronized positioning control of 4 hydraulic rams and lets you change motion parameters while the axis is moving. For each axis, the module accepts an input from a linear displacement transducer and provides a ±10V output to interface with proportional or servo valve amplifiers. The module is designed for use with the Hydraulic Configurator, a software product that you can obtain from the Allen-Bradley web site on the Internet. The Hydraulic Configurator is an interactive executable that lets you configure the module and tune its axes. The Hydraulic Configurator saves considerable time when troubleshooting or tuning axes. Applications include: plywood presses, roll positioning, palletizers and stackers, forges, and hydraulic tailgate loaders.
1746-QV⋆  Open-Loop Velocity Control Module	1 linear displacement transducer	160 inches at 0.01-inch resolution	1 analog output (0…10V DC or ±10V DC)	2 ms	1	215 mA at 5V DC	1746-RT27 (input) 1746-RT26 (output)
	Description — The 1746-QV module is part of an SLC-based open-loop control system for controlling the speed and placement of a hydraulic ram. The module accepts motion profiles that you program into the SLC processor and monitors an input from a linear displacement transducer. The SLC processor sends to the module a pair of extend and retract profiles that define when to accelerate or decelerate hydraulic motion. This ability to program these changes of speed reduces cycle time and reduces or eliminates pressure spikes and water-hammering for smoother operation and less wear and tear on the machine. This also saves energy and enables faster new-part change-over. The module fits simple hydraulic applications including simple hydraulic presses, die-casting machines, and weld-head placement. The module provides OEMs and system integrators with a less complex way to match hydraulic cylinder pressure or speed with application requirements.
⋆ This module is compatible only with an SLC 5/02, SLC 5/03, SLC 5/04, or SLC 5/05 processor in a local I/O chassis. ‡ Cables: 1492-ACABLE005Q (0.5 m), 1492-ACABLE010Q (1.0 m), 1492-ACABLE015Q (1.5 m), 1492-ACABLE025Q (2.5 m).