H#>)"D-=<<)$%'()*
Section 4-2
$-$
CIO Input Words
The 26 Input Words (n+14 to n+39) are divided in 5 groups: General, Counter 1,
Counter 2, Counter 3 and Counter 4.
** Bit(s) have no function for Simple Counters.
***The Reset, Preset, Capture and Z-signal Activated Bits are ON for exactly one
PLC-cycle after the occurrence of a (short) pulse which was detected since the
previous I/O Refresh.
Word
(input)
Bit
Item
Function
General
n+14, n+15
00-15
Output Status
Current status of Digital and Soft Outputs
n+16
00-03
Input Status
Current status of Digital Inputs
04-15
---
Not used
n+17, n+18
00-15
Error Code
The type of error is represented as follows:
n+17 = error code 1
n+18 = error code 2
Refer to 5-2
for more information
n+19
00
Global Error
Indication that one or more errors have occurred and that
their error code(s) are included in the error list of the Unit
01
Interrupts Pending**
Interrupts Pending (=1);
≥
!
1 interrupt(s) in FIFO-queue
02
Data Transfer Busy
Data Transfer Busy (=1), Unit is busy completing the
IORD/IOWR-instruction or is being initialized
03
Data Transfer
Completed
Toggled every time Data Transfer is completed
04
IA Blocks overlap**
Indication that IA blocks overlap in PLC memory
05-15
---
Not used
Counter 1
n+20, n+21
00-15
Ranges / Comparison
Values active**
Ranges Active (=1) / Inactive (=0) /
Comparison Values Active (=1) / Inactive (=0)
n+22, n+23
00-15
Counter Value
Counter Value
n+24
00
Counter Overflow
Counter Overflow (=1), Upper Count Limit of Linear
Counter is reached
01
Counter Underflow
Counter Underflow (=1), Lower Count Limit of Linear
Counter is reached
02
Counter Running /
Gate Open
Counter Running/Gate Open (=1),
Counter Stopped/Gate Closed (=0)
03
Counting Direction
Counting Direction, Down (=0) / Up (=1)
04
Preset Activated ***
Preset Activated (=1)
05
Reset Activated ***
Reset Activated (=1)
06
Capture Activated ***
Capture Activated (=1)
07
Z-signal Activated ***
Z-signal Activated (=1)
08-09
---
Not used
10
Rate Range 0**
Rate Range 0 Active (=1)
11
Rate Range 1**
Rate Range 1 Active (=1)
12-14
---
Not used
15
Simple Counter
Simple Counter (=1) / Circular/Linear Counter (=0)
W902-E2-03.book Seite 101 Donnerstag, 7. Oktober 2004 2:06 14
Summary of Contents for CS1W-CT021
Page 1: ...OPERATION MANUAL High speed Counter Units CS1W CT021 CS1W CT041 Cat No W902 E2 03...
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