Rockwell Automation 1769-HSC Compact High Speed Counter Module - Manual (Page 66)

66 Rockwell Automation Publication 1769-UM006E-EN-P - July 2013
Chapter 4 Module Configuration, Output, and Input Data
Configuration Array The configuration array, which consists of 118 words (46 words for the packaged
controller), lets you specify how the module’s counters will function. The default
value is all zeros with the exception of the following:
• NumberofCounters (see page 75 )
• Ctr nMaxCount (see
page 78 )
• Ctr nMinCount (see
page 79 )
• Ctr nScalar (see
page 80 )
• Ctr nCyclicUpdateTime (see
page 81 )
Word 0 contains general configuration bits. Word 1 contains the filter settings.
Words 2 through 5 refer to the physical outputs. Words 6 through 45 are counter
configuration words. Words 46 through 117 are range configuration words. More
detailed descriptions of the configuration words and bits follow the configuration
array below.
TIP Normal counter configuration is done using programming software. In
that case, it is not necessary to know the bit location. However, some
systems let the control program change configuration. Refer to your
controller’s documentation for details.
IMPORTANT When changing configuration values, verify that only valid configurations
are created for the module. For example, changing NumberofCounters
from its default of 1 to 0 requires that Ctr1MinCount and Ctr1MaxCount
also be set to 0, and so forth.
See the Configuration Error Codes table on page 117 if you encounter
configuration errors.
IMPORTANT Certain values (noted below) cannot be changed while a counter or range
is enabled. Attempting to do so will cause a configuration error and the
entire configuration array will be rejected until the error is eliminated.
Table 12 - Configuration Array - 1769-HSC Module and CMX 5370 L2 Packaged Controller Embedded HSC
Word
Bit
Function
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
0 Individual Counter Reset
Disable
(1)
NumberOf
Counters Not used PFE Not used Ctr
Rst OCL
O General Configuration
Bits
1 Filter_Z1 Not
used Filter_B1 Not
used Filter_A1 Filter_Z0 Not
used Filter_B0 Not
used Filter_A0 Filter Selection
2 Not used Out
3
PSR Out
2
PSR Out1
PSR Out0
PSR Out3
PM Out2
PM Out1
PM Out0
PM Output Program Mode
and Output Program
State Run
3 Not used Out3
PV Out2
PV Out1
PV Out0
PV Output Program Value
(1)
For the 1769-HSC/B module only. Bit 12 is Counter 0 reset disable; Bit 13, Counter 1 reset disable; Bit 14, Counter 2 reset disable; Bit 15, Counter 3 reset disable.
Counter reset function = 0: reset enable (default), 1: reset disable. See page 73 for details.