Specifications

Publication 1794-SG002D-EN-P - May 2012
64 Select FLEX I/O Modules
1794-IP4 4 Input Pulse Counter Module
The pulse counter modules perform high-speed scaling, calculation operations
for various industrial applications. Some sample applications include:
•quantity counting
• speed calculation
•flow monitoring
All the input devices for the pulse counter module should be able to provide the
input signal of 6V amplitude. The 1794-IP4 has a 6V minimum threshold for an
input ON condition and a maximum 3V threshold for an input OFF condition.
The region between 3V and 6V is a transitional one and therefore requires input
signals to pass cleanly through that region.
4 Input Pulse Counter Module
Specification 1794-IP4
Counting frequency, max 100 kHz
(1)
(1) Each signal condition must be stable for at least 2 ms to be recognized.
Input frequency, max 100
Input signal range 3 mA @ 6V DC
9 mA @ 12V DC
15 mA @ 24V DC
Overflow Maximum period – 65 ms when 1 MHz internal clock selected
Maximum period – 6.5 ms when 10 MHz internal clock selected
Dimensions (WxHxD), approx 46 x 94 x 53 mm (1.8 x 3.7 x 3.1 in.)
94 x 94 x 69 mm (3.7 x 3.7 x 2.7 in.) installed