Automated Logic LGC Technical Instructions
Technical Instructions
LGC
Using the LGC 2
Specifications 3
Mounting 3
Wiring 3
Power 3
Communications Wiring 4
Addressing 4
Transferring Memory 4
Troubleshooting 5
Communicating with the Workstation 5
Formatting the Module 6
LEDs 7
Protection 7
Production Date 7
Automated Logic Corporation • 1150 Roberts Blvd. • Kennesaw, GA 30144 • 770/429-3000 • 770/429-3001 Fax •
www.automatedlogic.com • Copyright 2000 Automated Logic Corporation. All rights reserved. Automated Logic, the
Automated Logic logo, SuperVision, Eikon, Alert and InterOp are registered trademarks of Automated Logic
Corporation. BACnet
their respective companies.
®
is a registered trademark of ASHRAE. All other brand and product names are trademarked by
Using the LGC
The LGC is part of the LANgate family and
provides communication between a
workstation and a control module network
(CMnet) consisting of fewer than 100
modules.
The LGC communicates with the CMnet using
an EIA-485 connection. The CMnet is a peerto-peer network that allows all control
modules to communicate with equal
authority using a token-passing protocol.
EIA-232
ConsolePort 1
EIA-232
ConsolePort 2
A workstation can communicate with the LGC
directly or through a modem. The LGC
provides two EIA-232 Console Ports and an
Access Port that can be connected to a
workstation, portable computer, or a modem.
The LGC must use v6.00g or later of the LGM
module driver. For more information, see the
LGM Module Driver
document on the
Automated Logic website at
www.automatedlogic.com.
Power Switch
71/8"
Auxiliary
Device Port
CMnet Baud
Rate Jumper
Access Port
LEDs
61/4"
Figure 1. Module dimensions and layout
NOTE
This equipment has been tested and
found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC
Rules. These limits are designed to provide
reasonable protection against harmful
interference when the equipment is operated
in a commercial environment. This
equipment generates, uses, and can radiate
radio frequency energy and, if not installed
Manual Format
Button
Addressing
DIP Sw itch
CMn et
Connection
1"
15/8"
and used in accordance with the instruction
manual, may cause harmful interference to
radio communications. Operation of this
equipment in a residential area is likely to
cause harmful interference in which case the
user will be required to correct the
interference at his own expense.
Revised 6/16/00 • LGC 2 © 2000 Automated Logic Corporation
Specifications
Power
Communications
Environmental Operating Range
Status Indication
Memory
Protection
Bat t e ry
Listed By
24VAC ±10%, 0.3A [(7.2VA), 5060Hz, power consumption] (single Class
2 source only, 100VA or less).
CMnet Port with EIA-485,
twisted pair, selectable for 156 kbps, 38.4
kbps, or 9600 bps. Two Console Ports,
selectable for 38.4 kbps or 9600 bps, for
direct connect or modem. One Access
Port for direct network using an APT. One
Auxiliary Device Port for a keypad/
display.
0 to
130°F (-17.8 to 54.4°C); 10 to 90% relative
humidity, non-condensing.
Visual (LED) status of
Console Port 1 and CMnet
communications, errors, running, and
power.
1MB Flash, 1MB RAM.
Built-in surge and transient
protection circuitry.
7-year lithium BR2325 battery
provides a minimum of 10,000 hours of
data retention during power outages.
UL 916 (PAZX), cUL C22.2
No.205 - M1983 (PAZX7), FCC Part 15 Subpart B - Class A.
Mounting
Screw the LGC into an enclosed panel using
the mounting holes provided on the cover
plate. Be sure to leave about 2 inches (5
centimeters) on each side for wiring.
BACview
the auxiliary device port.
You must use SuperVision to transfer memory
to the LGC. You can connect a portable
computer running SuperVision to the LGC
using the module’s Access port. For more
information about connecting to a
workstation, refer to “Formatting the Module”
on page 6.
1
or BACview2 keypad display unit to
Power
CAUTION
device (less than 30VAC, 100VA maximum).
Take appropriate isolation measures when
mounting the LGC module in a control panel
where non-class 2 devices or wiring are
present.
You can power several modules from the
same transformer if you maintain the same
polarity.
The LGC has an operating range of 21.6VAC
to 26.4VAC. If voltage measured at the
module’s power input terminals is outside this
range, the module may not work properly.
Since the module’s address is factory-set as
#1, you do not need to set the address.
1. Turn the module’s power off. This
prevents the module from being powered
up before the proper voltage is verified.
2. Make sure the 24VAC power source is off.
The LGC module is a Class 2
CAUTION
unit not expressly approved by the party
responsible for compliance could void the
user’s authority to operate equipment.
Changes or modifications to this
Wiring
The LGC connects to the CMnet through a
CMnet Connection port. The LGC also
provides an EIA-232 port for diagnostic
purposes. You can connect an optional
Revised 6/16/00 • LGC 3 © 2000 Automated Logic Corporation
3. Connect the power wires to the module’s
power terminals labeled Ground and
24VAC (see Figure 1 on page 2 for
location).
4. Apply power to the transformer.
5. Make sure that 24VAC is present at the
module’s power input terminals.
When the module turns on, the Run and
Error LEDs turn on and the Run LED
begins blinking. See Table 2 on page 7 to
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