Model MCX-32
Model MCX-32 Instruction Manual
Rev. 2.3
Page 35 of 49
8.0
Remote Display
The Remote Display option affords the ability to connect a remote monitoring station to the MCX-32
Controller System. The Remote Display contains the same touch screen display and interface PCA as the
MCX-32, but it does not have the ability to communicate directly with any of the devices connected to the
MCX-32 controller. The firmware in the Remote Display monitors the activity of the MCX-32 Controller, and
displays that information in much the same format as the controller. Many of the screens are the same as that
of the controller, some have been modified, and will vary from the controller’s screens. The Remote Display’s
System Configuration Menu also differs from that on the MCX-32 Controller.
The remote display communicates with the MCX-32 Controller via the controller’s RS-485 ‘REMOTE’ Port.
The MCX-32 acts as a slave device to the remote display. The remote polls the MCX-32 controller for
information. The MCX-32 Controller responds with a set of registers that the Remote Display uses to obtain
information from the controller. These registers are described in Section 11.2.
Additional remote displays can be added to the configuration by ‘daisy-chaining’ the remote displays. To
‘daisy-chain’ remote displays, connect the next remote display in the chain to the slave RS-485 port of the
remote display before it in the chain. If a PLC or other Modbus
™
master device is utilized, that does not
provide the ability to ‘daisy-chain’ the information to a slave RS-485 port, that PLC or Modbus
™
master
should be at the end of the chain.
8.1 Installation
1. Securely mount the MCX-32 Remote Display enclosure.
2. Connect 110/220VAC input wiring to the terminals labeled “ACV (L1)”, “Neutral (L2)”, and “Ground”
(Figure 41). The power supply is capable of handling AC inputs from 100-240VAC 50-60Hz without
degradation.
I
O
N
C
1
A
W
M
S
1
C
0
1
2
4
0
V
-
1
0
0
0
0
I
O
N
C
1
A
W
M
S
1
C
0
1
2
4
0
V
-
1
0
0
0
0
A
B
R
S
-4
8
5
GROUND
VAC (L1)
NEU (L2)
24VDC
I
O
N
C
1
A
W
M
S
1
C
0
1
2
4
0
V
-
1
0
0
0
0
Figure 41
AC/DC Inputs
3. If applicable, connect auxiliary 24 VDC to the terminals labeled “24VDC” and “DC Comm”. This input
can be used for primary power or back-up power in the event of AC power failure. The 24VDC input
voltage (rated at 20-30VDC) should be capable of delivering at least 1Amp to the load (24Watt @
24VDC). This voltage can come from an external 24VDC supply or a battery back-up. If batteries are
directly connected to this input, the unit has the ability to provide the necessary battery charging voltage to
the batteries.
See Section 6.3.9 Power Management Screen for setting up the charging voltage for
batteries.
