Publication 1794-6.5.12 - November 1997
5-10
How Communication Takes Place and I/O Image Table Mapping with the DeviceNet Adapter
Write Word 2
cont.
Bits 14-15
(16-17)
Input Type Select
Bit
15
14
Input type selection for channels 4-7
0
0
Thermocouple
0
1
RTD
1
0
Not used
1
1
Write Word 3
00-15 (00-17)
RTD loop resistance offset select bits
– used input type is set to RTD and sensor mode select is
set to 2-wire with loop resistance compensation. Allows you to set the type of RTD loop resistance
compensation used for all RTDs or one of three fixed values for all channels.
NOTE:
Not applicable
to 10
Ω
copper RTD, which defaults to 0
Ω
.
Bit
01
00
RTD channel 0
Bit
03
02
RTD channel 1
Bit
05
04
RTD channel 2
Bit
07
06
RTD channel 3
Bit
09
08
RTD channel 4
Bit
11
10
RTD channel 5
Bit
13
12
RTD channel 6
Bit
15
14
RTD channel 7
0
0
Use channel loop compensation value stored during calibration procedure
for 2-wire RTD (default = 0
Ω
)
0
1
5
Ω
1
0
10
Ω
1
1
15
Ω
Write Word 4
00-07
Extended data table command data bits –
These bits are written to the module during
calibration. They are used to define offset, gain and general channel calibration.
08-14 (10-16)
Extended data table command bits –
These bits are written to the module during calibration.
They are used to select channel calibration action.
15 (17)
Reserved for factory use only.
Word
Dec. Bits
(Octal Bits)
Description
