PLC Module 1771-NIS/B 1771 I/O Isolated Analog Input Module

Brand/ Manufacturer:
PLC Module
Dimensions:
3 x 15.2 x 25.8cm
Weight:
0.75kg
Country of Origin: :
USA
Description:
1771-NIS/B 1771 I/O Isolated Analog Input Module

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Part Number:	1771-NIS/B

Manufacturer:	PLC Module

Description:	1771-NIS/B is a 1771 I/O Isolated Analog Input Module

Full Description:	The module performs analog signal conversion and transfers the resulting digital data to the PLC processor for monitoring and control applications

Moore Automation Limited is not affiliated with or a distributor for PLC Module. The depiction, description, or sale of products featuring names, trademarks, brands, and logos is for identification and/or reference purposes only and does not indicate any affiliation with or authorization by any rights holder.

Sales manager: Tiffany Guan [email protected] + 86 18030235313 2851195473

Parameter
Model: 1771-NIS/B 1771 I/O Isolated Analog Input Module
Typical AC Signal Delay (Off): 45 (+/- 15) ms
Typical DC Signal Delay (Off): 50 ms
Backplane Current: 2.9 Amperes
Input Resolution: 4-20 Miliamperes (0.34 Microamperes/bit) (Module Suppllies Loop Power)
Operating Temperature: 0 °C to +60 °C (+32 °F to +140 °F)
Relative Humidity: 5% to 95%, non-condensing

Description

Eight 4–20 mA source input channels are available on the PLC Module 1771-NIS/B for connecting analog field instruments. Loop power is supplied directly by the module at 20–30 VDC, allowing many transmitters to operate without a separate external supply. Installed in a 1771 I/O chassis, the module draws 2.4 A of backplane current with a total power consumption of 12 W. It is compatible with PLC-3, PLC-5, and PLC-5/250 controllers used in existing 1771 automation systems.This 1771-NIS/B module is widely used in heavy industries such as oil and gas, chemicals, wastewater treatment, and power generation. In these sectors, the 1771-NIS/B is often used for specific applications, such as remote monitoring of remote two-wire pressure transmitters, flow meters, and temperature sensors when external power infrastructure is unavailable. For non-thermocouple applications, Allen-Bradley recommends using the 1771-NIS/B with an RTP-4 remote terminal panel, provided that the I/O .

Frequently asked questions

Q:How many input channels does the 1771-NIS/B provide?
A:The module provides eight isolated analog input channels, allowing multiple field signals to be monitored simultaneously.

Q:What type of input signals does the 1771-NIS/B accept?
A:The 1771-NIS/B is designed for 4–20 mA current inputs and provides loop power for connected current transmitters.

Q:What applications is the 1771-NIS/B suitable for?

A:The module is suitable for industrial process monitoring and control applications requiring accurate acquisition of 4–20 mA analog signals, including manufacturing, process automation, water treatment, chemical processing, and power generation systems.

Application areas

The PLC Module 1771-NIS/B is defining technical feature is 1500 V AC channel-to-channel galvanic isolation.The primary application areas include:

Metal and Steel Mills: Steel production facilities often require continuous measurement of cooling water temperature, hydraulic system pressure, and roller speed around electric arc furnace operations.
Chemical and Petrochemical Processing: Safely connecting to localized field instruments monitoring temperature profiles in large chemical reactor vessels.
Pulp, Paper, and Water Treatment: Managing chemical dosing, flow meters, and wet-end paper machine monitoring instruments where moisture and motor noise coexist.

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