18
Float Cal High Input
The Cal High Input is a floating-point voltage equal to 4.5 volts (±45 mV). It is derived from a
fixed c
alibration voltage source on the card. This input can be used to test the card’s calibration
and performance. NetArrays assigns a Tag to this input when the card is added to the I/O
configuration. Reassign this Tag as required to access this calibration voltage in the project
program.
Float Cal Low Input
The Cal Low Input is a floating-point voltage equal to 0.0 volts (±30 mV). This input can be used
to test the card’s calibration and performance. NetArrays assigns a Tag to this input when the
card is added to the I/O configuration. Reassign this Tag as required to access this calibration
voltage in the project program.
Float Board Temp
The Board Temp is a floating-point value, which equals to the operating temperature in Degrees
Celsius as measured by an on-board sensor. User applications can implement customized limits
for alarms and annunciations by examining the value of this variable. NetArrays assigns a default
Tag to this variable when the card is added to the I/O configuration. Reassign this Tag as
required to access this board temperature in the project program.
Integer Card Revision
The card revision is an integer value, which equals to the revision number of the PLD code.
NetArrays assigns a default Tag to this variable when the card is added to the I/O configuration.
Reassign this Tag as required to access this card revision in the project program.
Integer Cal Date
This is an encoded date when the card was calibrated in the format YYDDD where YY is
the last 2 digits of the year and DDD is the day within the year.
Integer Cal Serial Number
This is a serial number recorded when the card was calibrated.
Integer Error Detection
A Card Timeout Error (Bit 0) will set the Error Latch bit (Bit14), which will remain set until this bit is
cleared to zero by an operator. While the Error Latch is set, the card will be offline and the target
node will not attempt to communicate with it.
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
ERR
LTCH
DATA
ERR
DATA
INV
CARD
ID
CARD
ERR
CBL
ERR
LOOP
ERR
CAL
HIGH
CAL
LOW
CH
FAIL
TIME
OUT
Bit 14 Card Error Latch
This status bit indicates that a Card Timeout Error occurred on the I/O card, and that it
has been taken offline. The card will not be initialized or placed online until this bit is
cleared in the project program or operator intervention.
If this bit is set, it must be cleared to return the card to operation. The correct way to
clear this bit is to select the card’s icon in the I/O configuration Form while NetArrays is
operating in Debug mode and answ
er “Yes” to the Enable prompt. See I/O Card Status
and Control. (It is also possible to change the value of this variable by forcing an Integer
Bit Variable object, with Bit 14 selected in the object's properties, to zero.
Do not
clear
the entire Error Detection Integer Variable to zero.)
