Leds; Theory Of Operation - Danaher Motion Standalone MMC Hardware Manual

MMC Profibus Option Module
8.3

LEDs

The two configuration port LEDs and the two Profibus port LEDs are described below.
Port
Profibus
Port
Configu-
ration
Port
8.4

Theory of Operation

The Profibus scanner module provides a memory image of the nodes (slaves)
connected to a Profibus network. It is this memory image that is controlled by your
LDO created in PiCPro. The module's on-board processor continually transfers data
between this memory image and the actual Profibus nodes.
Communication between the Profibus module and the nodes can be set between
9600 baud (1200m max.) and 12M baud (100m max.). The baud rate, the relationship
between the memory image and specific data in each node, and other parameters are
established with configuration software run in an external PC.
This configuration software generates two files. One file is downloaded to the Profibus
module through its RS232 serial port. The other file is used by PiCPro to establish the
relationship between the memory image and the declared variables in the LDO. To
ensure that a given location in the memory image is connected to a variable in the
140
Table 8-3: Description of Profibus Port LEDs
LED
Color
Green
Network
status
Red
Green
Scanner
status
Red
Orange
IN
Red
OUT Red
version 15.1
State Definition
OFF Off-line
On-line, no physical layer or data
ON layer errors (or Profibus cable
not connected)
On-line, bus error (baud rate or
ON
wiring problem)
No power or else reset asserted,
OFF
interface closed
Scanner communicating, data
ON exchanging, no slave device er-
rors
Flashing Scanner in start-up
ON At least one slave faulted
ON Configuration (download) mode
Data is being passed to the mod-
Flickering
ule
OFF No data to the module
Data is being passed from the
Flickering
module
OFF No data from the module
Standalone MMC Hardware Manual
Danaher Motion