Omron CJ1-CT021 Operation Manual page 115

Memory Allocation
CIO Input Words
Word
(input)
n+14, n+15 00-15
n+16 00-01
02-15
n+17, n+18 00-15
n+19 00
01
02
03
04
05-15
n+20, n+21 00-15
n+22, n+23 00-15
n+24 00
01
02
03
04
05
06
07
08-09
10
11
12-14
15
100
The 26 Input Words (n+14 to n+39) are divided in 3 groups: General, Counter 1,
and Counter 2.
Bit Item
Output Status
Input Status
---
Error Code
Global Error
Interrupts Pending**
Data Transfer Busy
Data Transfer
Completed
IA Blocks overlap**
---
Ranges / Comparison
Values active**
Counter Value
Counter Overflow
Counter Underflow
Counter Running /
Gate Open
Counting Direction
Preset Activated ***
Reset Activated ***
Capture Activated ***
Z-signal Activated ***
---
Rate Range 0**
Rate Range 1**
---
Simple Counter
General
Current status of Digital and Soft Outputs
n+14, bits 00 and 01: Digital Outputs O0 and O1
n+14, bits 02 and 15: Soft Outputs 2 to 15
n+15, bits 00 and 15: Soft Outputs 16 to 31
Current status of Digital Inputs
Not used
The type of error is represented as follows:
n+17 = error code 1
n+18 = error code 2
Refer to 5-2 "Error codes" for more information
Indication that one or more errors have occurred and that
their error code(s) are included in the error list of the Unit
Interrupts Pending (=1); m 1 interrupt(s) in FIFO-queue
Data Transfer Busy (=1), Unit is busy completing the
IORD/IOWR-instruction or is being initialized
Toggled every time Data Transfer is completed
Indication that IA blocks overlap in PLC memory
Not used
Counter 1
Ranges Active (=1) / Inactive (=0) /
Comparison Values Active (=1) / Inactive (=0)
Counter Value
Counter Overflow (=1), Upper Count Limit of Linear
Counter is reached
Counter Underflow (=1), Lower Count Limit of Linear
Counter is reached
Counter Running/Gate Open (=1),
Counter Stopped/Gate Closed (=0)
Counting Direction, Down (=0) / Up (=1)
Preset Activated (=1)
Reset Activated (=1)
Capture Activated (=1)
Z-signal Activated (=1)
Not used
Rate Range 0 Active (=1)
Rate Range 1 Active (=1)
Not used
Simple Counter (=1) / Circular/Linear Counter (=0)
Section 4-2
Function