Allen-Bradley 1794-IF4I User Manual

Publication 1794-6.5.8 - January 2010
114 Input, Output, Status and Configuration Files for Analog Modules when used with ControlNet
Word 2 Bits 00-14
(00-16)
Not used
Bits 13-14
(15-16)
Safe State Source bits (S1/S0) - Not used in ControlNet applications. Turn
these bits off (i.e. set to 0)
Bit 15 (17) Output Enable bit (EN)
Set this bit off (0) for the output block
Set this bit on (1) for the configuration block
Word 3 Bits 00-15
(00-17)
Channel 0 output data. – The output data is real time data formatted to the
selected configuration. (This data is also safe state data when directed by S1
and S0.)
Word 4 Bits 00-15
(00-17)
Channel 1 output data. – The output data is real time data formatted to the
selected configuration. (This data is also safe state data when directed by S1
and S0.)
Word 5 Bits 00-15
(00-17)
Channel 2 output data. – The output data is real time data formatted to the
selected configuration. (This data is also safe state data when directed by S1
and S0.)
Word 6 Bits 00-15
(00-17)
Channel 3 output data. – The output data is real time data formatted to the
selected configuration. (This data is also safe state data when directed by S1
and S0.)
Table 6.6
Word/Bit Descriptions for the 1794-OF4I Isolated Analog Output Module
Word Decimal Bit
(Octal Bit)
Definition
Table 6.7
Configuring Your Outputs for the 1794-OF4I Isolated Output Module
Configuration Bits Nominal
Range
Data Type Output Values Update
Rate
MSD LSD Hexadecimal Decimal
0 0 0 1 4-20mA 2’s complement <0000–7878> <0000–30840> 5.0ms
0010+
10V 2’s complement <8618–79E8> <–31208–31208> 2.5ms
0011+
5V 2’s complement <8618–79E8> <–31208–31208> 2.5ms
0 1 0 0 0-20mA 2’s complement % 0–10000> 0–10000> 5.0ms
0 1 0 1 4-20mA 2’s complement % <0–10000> <0–10000> 5.0ms
0 1 1 0 0-10V 2’s complement % 0–10000> 0–10000> 5.0ms
0111+
10V 2’s complement <–10000–10000> <–10000–10000> 5.0ms
1 0 0 0 0-20mA binary 0000–F3CF> 0000–62415> 2.5ms
1 0 0 1 4-20mA binary 0000–F0F1> 0000–61681> 5.0ms
1 0 1 0 0-–10V binary 0000–F3CF> 0000–62415> 2.5ms
1 0 1 1 0-5V binary 0000–F3CF> 0000–62415> 2.5ms
1100+
20mA offset binary <8000–F9E8> 32768–63976> 2.5ms
1 1 0 1 4-20mA offset binary <8000–F878> <32768–63608> 5.0ms
1110+
10V offset binary <0618–F9E8> <1560–63976> 2.5ms
1111+
5V offset binary <0618–F9E8> <1560–63976> 2.5ms

Allen-Bradley 1794-IF4I Specifications

General

Brand	Allen-Bradley
Model	1794-IF4I
Category	I/O Systems
Language	English