Rockwell Automation 1794-APB/B FLEX I/O PROFIBUS Adapter Module User Manual User Manual
Page 46
2–26
How Communication Takes Place and I/O Image Table Mapping
Publication 1794ĆUM057B-EN-P - November 2001
Description
Dec. Bits
(Octal Bits)
Word
Write Word 2
00-03
Channel 0 RTD Type
Bit
03
02
01
00
RTD Type - Range
0
0
0
0
Resistance (default)
0
0
0
1
No sensor connected - do not scan
0
0
1
0
100 ohm Pt
α
= 0.00385 Euro (-200 to +870
o
C)
0
0
1
1
100 ohm Pt
α
= 0.003916 U.S. (-200 to +630
o
C)
0
1
0
0
200 ohm Pt
α
= 0.00385 (-200 to +630
o
C)
0
1
0
1
500 ohm Pt
α
= 0.00385 (-200 to +630
o
C)
0
1
1
0
Reserved
0
1
1
1
10 ohm Copper (-200 to +260
o
C)
1
0
0
0
120 ohm Nickel (-60 to +250
o
C)
1
0
0
1
100 ohm Nickel (-60 to +250
o
C)
1
0
1
0
200 ohm Nickel (-60 to +250
o
C)
1
0
1
1
500 ohm Nickel (-60 to +250
o
C)
1
1
0
0
Module data time stamp
1101 to 1111 - Reserved
04-07
Channel 1 RTD Type (see bits 00-03)
08-11
Channel 2 RTD Type (see bits 00-03)
12-15
Channel 3 RTD Type (see bits 00-03)
Write Word 3
00-03
Channel 4 RTD Type (see write word 2, bits 00-03)
04-07
Channel 5 RTD Type (see write word 2, bits 00-03)
08-11
Channel 6 RTD Type (see write word 2, bits 00-03)
12-15
Channel 7 RTD Type (see write word 2, bits 00-03)