Do-more T1H Series PLC User Manual, 1st Edition, Rev. C
7-3
Chapter 7: Specifications - Specialty I/O Modules
T1H-CTRIO
T1H-CTRIO Overview
The T1H-CTRIO Counter I/O (CTRIO) module is designed to accept high-speed pulse
input signals for counting or timing applications. This module provides high-speed pulse
output signals for servo/stepper motor control, monitoring and alarming as well as other
discrete control functions.
The T1H-CTRIO module offers greater flexibility for applications which call for precise
counting or timing based on input events or for high-speed control output applications. The
CTRIO module can also be used for applications that call for a combination of both high-
speed input and high-speed output control functions.
The T1H-CTRIO module has its own internal microprocessor and operates asynchronously
with respect to the CPU. Therefore, the response time of the on-board outputs is based on
the module’s scan time, not the CPU’s scan time (unless the CPU is controlling the outputs
directly).
2
T1H–CTRIO
1A
User Bus Terminals (no internal connection to CTRIO)
Channel Commons
OK ERR CH1CH2
1A 1B 1C 1D
2A 2B 2C 2D
Y0 Y1
Y2 Y3
–––––––USER BUS 1–––––––
–––––––USER BUS 2–––––––
26
1B 1C 1D Y0 Y0 Y1 Y1 2A 2B 2C 2D Y2 Y2 Y3 Y3
1M 1M 1M 1M C0 C0 C1 C1 2M 2M 2M 2M C2 C2 C3 C3
Input
A
Input
B
Input
C
Input
D
Input
A
Input
B
Input
C
Input
D
Channel 1
Channel 2
Output
0
Output
1
Output
2
Output
3
1A 1B 1C 1D
Y0 Y1
2A 2B 2C 2D
Y2 Y3
T1H-CTRIO
ERR CH1 CH2
OK
T1H-CTRIO Terminal Block Layout
