Toptech Systems MultiLoad II User Manual page 22

Chapter 2 –System Description
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2.7 FCM II
The Flow Control Module (FCM) is an integral part of the MultiLoad system. The FCM contains its own
microprocessor for digital/analog valve control, meter pulse counts and factoring, additive injection, pump and
meter permissives, DC & AC General purpose I/O, RTD Input, 4-20 mA input/output and more.
The utilization of FCMs enables you to extend control beyond the confines of the expensive, heavy metal boxes
that clutter today's load racks. Now you can buy as much or as little as you need, and locate that control where it
is needed. This design lowers equipment and installation costs significantly compared to traditional presets.
If you need to add a preset to the loading lane, you don't have to purchase, wire and install an entire traditional
preset device. All you have to do is snap one or more Flow Control Modules into the FCM enclosure and
configure accordingly.
In addition to providing all of the original functionality found in the previous generation units, FCM II introduces a
variety of new features in a compact new package.
Modular Construction – FCM II is available in eight varieties (featured below).
This modular construction
simplifies the process of FCM mapping to field devices by appropriating each FCM II model with just the right
amount of I/O for its designated purpose. In addition, FCM IIs mount on DIN rail and require no wiring between
units; 24Vdc and serial communications are bussed. This substantially simplifies installation and wiring.
Compact Packaging – Every FCM II occupies considerably less space than the previous generation FCM. This
smaller footprint ranges from 1/3 – 1/6 the size of the original unit. This allows for more I/O per enclosure size
and provides an opportunity to mount several FCM IIs in a compact, explosion-proof enclosure.
Compatibility – FCM I and FCM II utilize the same protocol and can co-exist on the same RS-485 bus.
Furthermore, FCM IIs are backward compatible with previous generation FCMs allowing them to be used to
replace older FCM units. In addition, FCM II is designed to work identically with all MultiLoad products.
Firmware Version 3/4.31.37