Allen Bradley 1746-OG16 Digital Output Module

   The Allen Bradley 1746-OG16 Digital Output Module is a 16-point 5V DC sink output device designed for the SLC 500 PLC platform. Engineered for low-level TTL applications, it provides precise and reliable control for indicator displays, test equipment, and other low-voltage devices requiring sink-load operation. Each output delivers 0.024 Amps, with a total module current of 0.384 Amps, ensuring consistent multi-channel performance without overloading the system. The module features fast and predictable switching, with a step response of 60 milliseconds ON and 2.5 milliseconds OFF, and an off-state voltage range of 4.5–5.5 VDC for signal integrity.

Parameter	Specification
Module Type	Digital DC Output Module
Outputs	16
Voltage Range	5 Volts DC Sink
Backplane Current (5 Volts)	180 mA
Current per Output	0.024 Amps
Current per Module	0.384 Amps
Applications	TTL Loads, Sink-Load Displays
Backplane Current	(5 Volts) 180 mA
Step Response	60 ms (ON), 2.5 ms (OFF)
Signal Delay, ON	0.25 mA
Signal Delay, OFF	0.50 mA
Off-State Voltage	4.5–5.5 VDC

Catalog Number	Watts per Point	Minimum Watts	Total Watts
1746-OA8	1.000	0.925	9.00
1746-OA16	0.462	1.850	9.30
1746-OAP12	1.000	1.850	10.85
1746-OB6EI	0.440	0.230	2.90
1746-OB8	0.775	0.675	6.90
1746-OB16	0.388	1.400	7.60
1746-OB16E	0.150	0.675	3.07
1746-OBP8	0.300	0.675	3.08
1746-OBP16	0.310	1.250	6.26
1746-OG16	0.033	0.900	1.50

   The Allen Bradley 1746-OG16 Digital Output Module is specifically engineered for 5V DC sink output applications, making it ideal for TTL loads and sink-load displays. With 16 output channels and a precise current rating of 0.024 A per output, the module ensures stable and accurate signal control for low-power devices. Its controlled step response time of 60 ms ON and 2.5 ms OFF allows predictable signal switching behavior. The low backplane current requirement of 180 mA at 5 Volts makes it energy-efficient within SLC 500 systems, reducing overall power consumption while maintaining reliable performance.

1. What is the main function of the 1746-OG16 module?

It is a 16-point 5V DC sink digital output module designed for SLC 500 PLC systems.

2. What type of loads does the module support?

It is designed for TTL loads and sink-load displays operating at 5 Volts DC.

3. What is the current rating per output?

Each output supports 0.024 Amps (24 mA).

4. What is the step response time?

The response time is 60 milliseconds when turning ON and 2.5 milliseconds when turning OFF.

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