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SDM-CD16AC 16 Channel AC/DC Controller
CDCtrl(1) will be sent to port 1, the value held in CDCtrl(2) will be sent to
port 2, etc. The value held in CDCtrl(32) would be sent to port 16 on the
second SDM-CD16AC.
Reps: The Reps parameter is the number of SDM-CD16AC devices that will
be controlled with this instruction.
SDMAddress: The SDMAddress parameter is used to define the address of
the CD16AC that will be controlled with this instruction. Valid SDM addresses
are 0 through 14. Address 15 is reserved for the SDMTrigger instruction. If the
Reps parameter is greater than 1, the datalogger will increment the SDM
address for each subsequent device that it communicates with.
CRBasic dataloggers use base 10 when addressing SDM devices.
Edlog programmed dataloggers (e.g., CR10X, CR23X) used
base 4 for addressing (see Table 2).
NOTE
TABLE 2. Base 10 to Base 4 Reference Chart
Base 10 Base 4 Base 10 Base 4
0 0 8 20
1 1 9 21
2 2 10 22
3 3 11 23
4 10 12 30
5 11 13 31
6 12 14 32
7 13 15 33 (reserved)
6.2 Edlog Programming
Instruction 104⎯SDM-CD16AC use with CR23X, CR10(X), and 21X
Param. Type Description
1 2 Reps (# of modules sequentially addressed)
2 2 Starting Address (base 4: 00..33)
3 4 Starting Input Location
Execution Time = 2 ms per Rep for the CR10X, 3.5 ms per Rep for the 21X
Instruction 29 - SDM-CD16AC use with CR7
Param Type Description
1 2 Reps (# of modules sequentially addressed)
2 2 Device (2 = SDM-CD16AC)
3 2 Starting Address (base 4: 00..33)
4 2 Card (Excitation card #)
5 4 Starting Input Location
Execution Time = 150 to 190 ms per Rep
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