Revised 7/30/02 • S6104
12
© 2002 Automated Logic Corporation
Analog Outputs
The S6104 module has 4 analog outputs that
support voltage devices in the 0 to 10VDC
range. The device that is being controlled
must have at least 500 Ohms resistance
measured from its input to ground and must
share the same ground as the module.
Although the S6104’s analog outputs were
not designed to output current, it is possible
to use these outputs for current mode
devices. To drive a 20mA device from the
module’s analog output, the total resistance
of the load must be 500 Ohms. If necessary,
wire a 1/2 watt resistor in series with the
20mA device as shown in Figure 15.
Example:
To drive a 20mA device that has
100 Ohms of resistance, wire a 400 Ohm
resistor in series with the 20mA device (100
Ohms + 400 Ohms = 500 Ohms total
resistance).
Be sure the S6104’s power is off before wiring
any inputs or outputs. Connect the output
wiring to the screw terminals on the module.
To verify each output’s operation, lock the
output to a known condition using the
Function Block’s Properties page in WebCTRL
or Parameter page in SuperVision. Be sure the
equipment operates as specified.
Writing GFBs for the S6104
You must use Eikon v3.0a or later to create
GFBs for the S6104. When using a LogiStat
sensor with the S6104, include a LogiStat
microblock in the module’s GFB (see Figure
16). The LogiStat microblock supports the
LogiStat, LogiStat Plus, and LogiStat Pro
sensors. You do not need to enter point
numbers or point types in SuperVision or
Eikon for WebCTRL. Likewise, you do not
need to enter channel numbers for this
microblock in SuperVision or Eikon. For more
information, refer to the
Eikon Microblock
Reference Guide
.
Table 5. HOA Switch Positions
Output
Configuration
On
Off
Auto
Normally open
output
DO
contacts
closed
DO
contacts
open
determined
by FB
programming
Results on
Properties page
in WebCTRL* or
Status page in
SuperVision**
ON
ON
OFF
* use point type of HOA Status Feedback and point
number
** use channel numbers 81 - 86
Figure 15. Analog Output Wiring
100
Power
On Off
24 Vac
Gnd
Gnd
Gnd
+
Gnd
+
Gnd
+
+
8
6
5
4
3
1
2
7
AO-4
AO-3
AO-2
AO-1
4-20mA
400
AO
AO
0-10V
