User manual

Front Panel Controls
There are two switches directly located on the front panel:
AC POWER
This ON/OFF switch controls the main power
MEMORY PROTECT This key switch can be set to ON and key removed to pro-
tect the content of the memory from change. OFF allows
normal program development.
The Detail of figure 1 illustrates the AC input power connections and the DC option
select switch located under the Controller handle. When you have wired your +24
VDC to the controller you can run the controller on the DC only or run on AC with
a power fail DC backup.
DC POWER Position the toggle switch to ON for DC backup.
Behind the Battery cover and just below the battery there is a toggle switch:
MEM DIP
This switch enables the configuration of Modbus Port 1 pa-
rameters as set, in the DIP switches (as illustrated in
Figure 3 are accessible from the bottom of the Controller)
or reads the port parameters from Memory.
The memory byte allocated to this parameter provides an
operating environment of:
9600 Baud, Even Parity, 1 Stop Bit, RTU
The switch configuration upon shipment has the same de-
fault setting as the Memory setting. Because the switch set-
ting is sensed at power up if you are set to DIP and change
the setting you must power cycle the unit to implement the
new setting. The same is true if you switch from DIP to
MEM. The available Baud rate is listed in Table 4.
10
Installation
GM-L984-785 Chapter 2