Omron SmartSlice GRT1-OD4G-1 Operation Manual page 26

Slice I/O Terminal Introduction
Temperature Zone
Counter
Data Comparison between
Channels
Counter Unit and Positioning Unit Features
Counter
Counter Input Modes
Speed Measurement
Digital Inputs
Digital Outputs
Comparison Range
6
The temperature zone counter can be used to measure how long the temper-
ature input value is within a user-set temperature range in 1-second incre-
ments. The host will be notified with a flag when the measured value exceeds
the set value.
The temperature differences between input channels 0 and 1 can be calcu-
lated and compared to a set value. The host will be notified with a flag when
the temperature difference exceeds a set value.
Each Unit provides one high-speed counter with a 32-bit resolution. Counting
is performed in linear fashion, and encoder signals up to 60 kHz can be input
with Counter Units and up to 100 kHz can be input with Positioning Units. The
Counter Units support 24-V inputs and the Positioning Unit supports either 24-
V or line-driver inputs (settable).
The counter can be set to any of the following input modes:
• Phase differential ×1
• Phase differential ×2
• Phase differential ×4
• Pulse/direction
• Up/down
The output pulse frequency is measured and can be read from the I/O area at
any time.
The Counter Unit supports an input that can be set to operate either as a digi-
tal input or an encoder Z-signal input. The Positioning Unit provides both a
digital input and an encoder Z-signal input.
The digital input can be set to reset the counter, preset the counter, or capture
the present counter value. Any of these actions can be set to be performed on
the rising or falling edge of the digital signal.
The Z-signal input of the Positioning Unit can be set to reset the counter in
various ways.
Each Counter Unit provides one digital output and the Positioning Unit pro-
vides two digital outputs. A digital output can be used as a general-purpose
output, or it can be controlled using a settable counter value comparison
range.
A comparison range can be enabled for the counter value to control a digital
output. The output will be turned ON or OFF depending on the relationship
between the counter value and the range that is set. Each Counter Unit pro-
vides one comparison range.
Section 1-1