1734-IE4S Allen-Bradley POINT I/O Safety Analog Input Module 4-Ch

1734-IE4S – Allen-Bradley POINT I/O Safety Analog Input Module

Four safety analog inputs in one POINT I/O slice. The 1734-IE4S reads voltage, current, or tachometer signals. Wire it for bipolar or unipolar mode. Use it where safety-rated analog feedback matters. This is not a general-purpose input card. It carries dual-channel equivalent evaluation for SIL-rated loops. Sensor power outputs are individually current-limited and monitored. Each channel is single-ended. You get 12-bit ADC resolution. The module fits standard POINT I/O racks and speaks the POINT I/O backplane protocol. Engineers pick it for safety functions that need analog position, speed, or pressure confirmation.

Technical Specifications

• Manufacturer: Rockwell Automation
• Brand: Allen-Bradley
• Catalog Number: 1734-IE4S
• Series: POINT I/O
• Module Type: Safety Analog Input Module
• Inputs: 4 single-ended per module
• Input Type: Voltage, Current, or Tachometer
• Modes: Bipolar or Unipolar
• ADC Resolution: 12 bits
• UPC: 10885630078578

Signal Ranges and Thresholds

• Tachometer code range: 0 to 1000; frequency 1 to 1000 Hz; over range at 1 kHz
• Current code range: −8192 to 32767 at 4 to 20 mA
• Voltage code range: −32768 to 32767 bipolar; 0 to 32767 unipolar
• Current over range: 20 mA at 0 to 20 mA and 4 to 20 mA
• Current under range: 0.5 mA at 0 to 20 mA; 4 mA at 4 to 20 mA
• Voltage over range: 10 V at 0 to 10 V; 5 V at 0 to 5 V
• Voltage under range: 0.5 V at 0 to 10 V; 0.25 V at 0 to 5 V

Shipping and Warranty

• Orders ship within 24 to 28 hours
• Carriers: FedEx, UPS, DHL
• 12-month warranty covers functional defects
• Warranty excludes incorrect wiring, overvoltage, and environmental damage
• Tracking number issued on dispatch

Professional FAQ

Q: Can I use the 1734-IE4S in a standard non-safety POINT I/O rack?

A: Not recommended. Safety modules need a compatible safety adapter and controller. Verify the rack adapter revision first. Many field failures come from mixing safety slices into standard racks.

Q: How do I wire dual-channel equivalent mode correctly?

A: Configure the module for single-channel operation first. Then wire both channels identically to the same sensor pair. Mismatched wiring causes pair evaluation faults that look like module failure.

Q: What sensor types work with the tachometer input?

A: The tachometer range is 1 to 1000 Hz with a code range of 0 to 1000. Use clean pulse sources. Noisy signals near the 1 kHz over range threshold will trip faults. Check your sensor output level before wiring.

Q: Is the 1734-IE4S a good choice for non-safety analog signals?

A: No. Use a standard POINT I/O analog input for non-safety loops. You pay a premium for safety certification. Buy the safety card only when the loop requires it.

Q: How do I confirm the right module before ordering?

A: Send a photo of the existing slice and rack label. Include the adapter catalog number. We verify fitment before shipment. This prevents returns on obsolete or revised POINT I/O hardware.