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SDM-CD16AC 16 Channel AC/DC
Controller
0
1
2
3
0
1
2
3
ADDRESSES
GND
C1
C2
C3
+12V
AUTO
ON
OFF
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
AUTO
ON
OFF
C2
C2
C2
16
C2
C2
C2
16
C2
C2
C2
16
C2
C2
C2
16
C2
C2
C2
16
C2
C2
C2
16
C2
C2
C2
16
C2
C2
C2
16
C2
C2
C2
16
C2
C2
C2
16
C2
C2
C2
16
C2
C2
C2
16
C2
C2
C2
16
C2
C2
C2
16
C2
C2
C2
16
C2
C2
C2
16
Logan, Utah
SDM-CD16AC
16 CHANNEL AC/DC CONTROLLER
INPUT: 12 VDC
LOAD: 5 A 277 VAC 1/6 HP
5 A 125 VAC 1/10 HP
MADE IN USA
S/N:
U
L
LISTED
INDUSTRIAL CONTROL EQUIPMRNT
5Z21
U
L
FIGURE 1. SDM-CD16AC Face Panel
1. Function
The SDM-CD16AC has 16 AC/DC relay control ports (see Figure 1). Each relay
port can be controlled by a datalogger or controlled manually with a manual
override toggle switch.
The toggle switch has three positions; "ON" and "OFF" for manual override,
and "AUTO" for datalogger control. In the "ON" position, the common
(COM) and normally open (NO) contacts are closed (see Figure 2). In the
"AUTO" position, the state of the relays are controlled by the datalogger
control ports.
The SDM-CD16AC is a synchronously addressed datalogger peripheral.
Three ports on the datalogger are used to address the SDM-CD16AC, then
clock out the desired state of each of the 16 control ports. Up to 16 SDM-
CD16ACs may be addressed, making it possible to control a maximum of 256
ports from the three datalogger ports.
In CRBasic, the SDMCD16AC instruction is used to control the SDM-
CD16AC. In Edlog, either I/O Instruction 104 (CR10(X), CR23X, 21X) or
Instruction 29 (CR7) is used.
Ensure that the datalogger contains the appropriate instruction
prior to system deployment. The SDM-CD16AC is not
compatible with our CR200-series, CR500, or CR510
dataloggers.
NOTE
1