WAGO 750-638

WAGO 750-638 – 2 Up/Down Counters (500 Hz, 16-Bit Differential Inputs)

Overview

The WAGO 750-638 module is designed to count binary pulses (24 VDC) from digital sensors or switches, with two independent up/down counters. Each channel supports forward and reverse counting, has a depth of 16 bits, and can be controlled via control/status bytes to set, reset or lock counters. It is suitable for applications where precise pulse counting with directional awareness is needed.

Key Features

• Two independent 16-bit up/down counters

• Differential input signal characteristic

• Max switching frequency: 500 Hz

• Input filter: approx. 0.2 ms

• Ability to set, reset, and lock counters via control bytes

• Status and control information via dedicated bytes per channel

• LEDs indicating counting input activity and module communication status

• Compact 12 mm module width, standard IP20 protection

Technical Specifications

Part Number: 750-638
Number of Counters: 2
Counter Depth: 16 bits
Maximum Counting Frequency: 500 Hz
Input Filter Time: 0.2 ms
Signal Type: Differential inputs
Voltage Ranges:
 Signal “0”: approx. −3 V … +5 V DC
 Signal “1”: approx. 15 V … 30 V DC
Minimum Pulse Width: ~1 ms
System Supply Voltage: 5 VDC via data contacts
Field Supply Voltage: 24 VDC via power jumper contacts
Current Consumption (System Supply): ~10 mA
Current Consumption (Field Supply, no external load): ~8 mA
Isolation Voltage (System vs Field): 500 V
Connection Technology: CAGE-CLAMP® for all input/output terminals
Conductor Size (Solid / Stranded): 0.08 … 2.5 mm² (AWG 28 … 14)
Wire Strip Length: 8 … 9 mm
Dimensions: Width ≈ 12 mm; Height ≈ 100 mm; Depth ≈ 69.8 mm
Height from top edge of DIN-rail: ≈ 62.6 mm
Operating Temperature: 0 °C … +55 °C
Storage Temperature: −40 °C … +85 °C
Protection Rating: IP20

Applications

• Counting pulses from encoders, flow meters, or pulse generators where bidirectional counting is needed

• Systems requiring precise tracking of movement or flow with forward/backward logic

• Industrial automation panels where multiple counting channels are needed in compact form

• Situations where setting/resetting or locking counters remotely is required

Why Choose the WAGO 750-638

• Provides both up and down counting in two channels with high resolution (16 bits)

• Fast switching capability (500 Hz) with short input filter for clean pulse detection

• Differential inputs help in reducing noise for better reliability

• Remote control (set, reset, lock) and status feedback increases flexibility and monitoring

Order Now

The WAGO 750-638 is part of the WAGO I/O System 750 product line and is available for purchase. Ships worldwide.

NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. DDPARTSSOLUTION Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply