Rockwell Automation 1794-APBDPV1 FLEX I/O PROFIBUS Adapter User Manual User Manual
Page 68
Publication 1794-UM064B-EN-P - May 2014
56 Communicate With Your Module
1
1
0
1
± 20 mA
offset binary
<8000...F878>
<32768...63608>
5.0 ms
1
1
1
0
± 10V
offset binary
<0618...F9E8>
<1560...63976>
2.5 ms
1
1
1
1
± 5V
offset binary
<0618...F9E8>
<1560...63976>
2.5 ms
1794-IF2XOF2I Analog Combo Module Word/Bit Descriptions
Word
Decimal Bit
(Octal Bit)
Definition
Read Word 0
Bit 00…15
(00…17)
Input Channel 0 input data – 16-bit unipolar; 15-bit plus sign bipolar.
Read Word 1
Bit 00…15
(00…17)
Input Channel 1 input data – 16-bit unipolar; 15-bit plus sign bipolar.
Read Word 2
Bits 00…15
(00…17)
Read Back Output Channel 0 – During normal operation, it is a copy of the output of channel
0. During an EN transition, it is the condition of the output as determined by S1 and S0.
Read Word 3
Bit 00…15
(00…17)
Read Back Output Channel 0 – During normal operation, it is a copy of the output of channel
0. During an EN transition, it is the condition of the output as determined by S1 and S0.
Read Word 4
Bit 00…15
(00…17)
Real Time Sample – The fixed time period you set telling the module when to provide data to
the processor.
Read Word 5
Bit 00
Reserved.
Bit 01
Calibration Done bit (DN) – This bit is set to 1 after a calibration cycle is completed.
Bit 02
Calibration Bad bit (BD) – This bit is set to 1 if the channel calibration coefficients cannot be
saved or be read properly.
Bits 03…07
Set to 0.
Bits 08…11
(10…12)
Reserved.
Bit 12 (14)
Set to 0.
Bit 13 (15)
Configuration mode bit (CF) – This bit is set (1) when the calibration mode is selected (bit 15,
word 5 in the block transfer write set to 1).
Bit 14 (16)
Field Power Off bit (FP) – This bit is set (1) when the 24V field power fails. When this bit is
set (1), the module status indicator flashes.
Bit 15 (17)
Power Up (unconfigured state) bit (PU) – This bit is set (1) when the configuration word is
all zeroes (0) due to a reset (adapter power cycle or module insertion) or a cleared configuration
word (all 0).
Configure Your Output Channels
Configuration Bits
MSD LSD
Nominal
Range
Data Type
Output Values
Hexadecimal Decimal
Update
Rate