G&L MMC-A2, Hardware Manual

Page: 102 / 192

Standalone Digital MMC Control
94 MMC Hardware Manual G & L Motion Control Inc.
The Standalone Digital MMC Control co24 Vdc input
power to various DC voltage levels that power the logic side of the
Control. This same 24 Vdc power is also routed to any MMC
Option Modules that may be connected to the Control.
Three lights on the front of the Control (Scan, Power, and
Diagnostic) provide operational and diagnostic information, as
described in
Section 3.8 on page 24 .
The Control does the following after +24 Vdc input power is
applied:
•
Performs diagnostic tests.
•
Checks the battery.
•
Performs routine maintenance tasks.
•
Executes the application program.
•
Communicates with any attached MMC Option Modules.
•
Communicates with any Block I/O connected to the Block
I/O port.
•
Communicates with workstation connected to the PiCPro
port.
•
Communicates with any serial device(s) connected to the
User Port.
•
Communicates with any device(s) connected to the Ethernet
Port.
•
Communicates with any Digital MMC Smart Drives that
are connected to one of the four Digital Link branches.
The Standalone Digital MMC Control contains a Compact Flash
socket that is accessible from the front of the control. In the future,
the Compact Flash may be used to store application object code,
application source code, user data, etc. As of this writing, the
Compact Flash socket is not supported, and a Compact Flash device
should never be installed into the socket.