AutomationDirect DL205 - Analog Data Bits; Active Channel Bits; Broken Transmitter Bits (Pointer and Multiplexing Ladder Methods)

DL205 Analog Manual, 7th Edition Rev. D
7-18
Chapter 7: F2-04THM, 4-Channel Thermocouple Input
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
B
C
D
When a DL230 CPU is used, the input points must start on a V-memory boundary. To use
the V-memory references required for a DL230 CPU, refer to the table below. The first input
address assigned to a module must be one of the X inputs shown. The table also shows the
V-memory addresses that correspond to these X inputs.
Analog Data Bits
The first 16 bits represent the analog data
in binary format.
Bit Value Bit Value
0 1 8 256
1 2 9 512
2 4 10 1024
3 8 11 2048
4 16 12 4096
5 32 13 8192
6 64 14 16384
7 128 15 32768
Active Channel Bits
The active channel bits represent the
multiplexed channel selections in binary
format.
Bit 1 Bit 0 Channel
0 0 1
0 1 2
1 0 3
1 1 4
Broken Transmitter Bits (Pointer and
Multiplexing Ladder Methods)
The broken transmitter bits are on when
the corresponding RTD is open.
Bit Channel
8 1
9 2
10 3
11 4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
b
C
D
X
X0 X20 X40 X60 X100 X120 X140 X160
V
V40400 V40401 V40402 V40403 V40404 V40405 V40406 V40407
V40401
BSLBSM
01
1
1
0
987 654321
= databits
X
2
0
X
3
7
1
2
1
3
1
4
1
5
V40402
BSLBSM
01
=activechannelbits
X
4
0
X
5
7
V40402
BSLBSM
01
1
1
0
987654321
=brokentransmitter bits
X
4
0
X
5
7
X
4
7
X
5
0