Data Sheet for Product

Page 2 of 19 Siemens Industry, Inc.
25 +
AO13
26 -
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AO14
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AO16
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AO15
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9
DI5
10
11
DI6
12
13
DI7
14
15
DI8
16
DI1
1
2
DI2
3
4
DI3
5
6
DI4
7
8
C57
DO25 NO 58
NC 59
C60
DO26 NO 61
NC 62
C63
DO27 NO 64
NC 65
C66
DO28 NO 67
NC 68
C69
DO29 NO 70
NC 71
C72
DO30 NO 73
NC 74
C75
DO31 NO 76
NC 77
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AO12
24 -
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AO11
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AO10
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AO9
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39 +
AI20
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AI19
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AI18
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AI17
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AI24
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AI23
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24 VDC
SENSOR
SUPPLY
SHIELD
49
50
51
52
53
54
55
56
C78
DO32 NO 79
NC 80
MEC0103R1
0
0
0
0
0
0
0
0
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
ENET
FLN
3 2 1
FLN BLN EXPFLN
45
STATUS
MODEM
RX
TX
RX
TX
RX
RX
RX
TX
RX
TX
RX
TX
RS422
BATT
LNK/ACT
100 TX
FULL/COL
DIGITAL INPUT
CONNECTORS
ANALOG OUTPUT
CONNECTORS
DIGITAL OUTPUT
CONNECTORS
EXPANSION BUS CONNECTOR (EXP)
FLN
CONNECTORS (3)
24 VAC POWER
CONNECTOR
STATUS
LEDS
BATTERY
COVER
MMI PORT
ETHERNET PORT
ANALOG INPUT
CONNECTORS
24 VDC SENSOR
POWER
SHIELD
TERMINATION
HOA LED
HOA CONTROL
SWITCHES
Figure 2. Power Modular Equipment Controller components
and key features.
The Power Modular Equipment
Controller
Several styles of controllers provide flexibility and
expansion to meet application needs. All the Power
MEC models for BACnet Networks support industry
standard BACnet/IP networks through a direct
connection to 10/100 Base-T for ALN
communications.
Power MEC Controller– 1200EB
In addition to control of the 32 points on the
input/output point board, this controller supports
analog and digital point expansion modules, which
can be mounted remote from the controller. This
capability expands the point capacity of the Power
MEC and provides for cost-effective placement of the
point terminations close to the load.
Power MEC Controller – 1200EFB
The Power MEC “EFB” version adds three
connections to the APOGEE P1 FLN, for a total of 96
devices supervised by the Power MEC, or it may be
configured for a single BACnet MS/TP connection
supporting up to 96 devices.
Power MEC Controller – 1200ELB
The Power MEC “ELB” version adds LONWORKS
compatibility at the FLN. It is equipped with a Neuron
Microprocessor and FTT-10A Transceiver. Instead of
three connections to the APOGEE FLN, it has a
single connection for a L
ONWORKS network.
The “ELB” versions have a L
ONWORKS network
database server embedded. This database maintains
a dynamic, real-time representation of the L
ONWORKS
network including connections/bindings, node status,
and configuration parameters values.
Hardware
The Power MEC consists of the following major
components:
 Input/Output Point Board
 Power Supply
 Controller Board
Input/Output Point Board
The input/output point board contains 32 points that
perform A/D or D/A conversion, signal processing,
point command output and communication with the
controller board. The terminal blocks are removable
for easy termination of field wiring. The analog input
points are selectable to be 0-10V, 4-20 mA, 1K RTD
or optional 100K Thermistor. The analog output points
are also selectable to be either 0-10V or 4-20 mA.
The digital inputs are dry contact, with four being
pulse accumulator inputs. The digital outputs support
110/220V Form C rated relays.
Power Supply
The power supply provides regulated power to the
input/output point board and active sensors. The
power supply is internal to the Power MEC housing,
simplifying installation and troubleshooting.
The power supply works with the controller board to
ensure smooth power up and down sequences for the
equipment controlled by the I/O point board and
analog and digital point blocks, even through brown-
out conditions.
Status LEDs indicate 24 Vac supplied from the power
supply and 24 Vdc supplied to the input/output point
board.
Controller Board
The controller board is a microprocessor-based multi-
tasking platform for program execution and
communications with the I/O point board and with
other Power MECs and field panels over the ALN.
The Power MEC can also support analog or digital
point expansion modules, which provide for point
expansion capability to match the application
requirements. The controller board scans field data,
optimizes control parameters and manages operator
requests for data.
An RS-232 operator terminal port with a quick
connect phone jack (RJ-11) is included with each
controller board for operator devices such as a Local
User Interface (LUI), simple CRT terminal, laptop PC,
or printer.