Allen-Bradley DeviceNet 1756-DNB User Manual

2–5Before You Begin
Publication 1756–6.5.15 – July 1998
DeviceNet Manager software configures the communication
module’s data tables. This software tool connects to the
communication module via the DeviceNet network and an RS-232
interface module (1770-KFD) or PC Card (1784–PCD, –PCID).
User
configured
tables
Data in this table DeviceNet Manager
configuration screen
See page
SCT
G basic operation
parameters
G inter-scan delay
G background poll ratio
1756–DNB Module
Configuration
3–3
SLT
G device-specific
identification data
Scan List Editor (SLE) 3–8
G data transfer method
G transmit/receive data size
Edit Device I/O Parameters 3–13
G input and output data
source and destination
locations
These values can be
configured automatically
through the Auto Map
function on the SLE or
manually through the Data
Table Map.
3–8 for SLE information
or
3–16 for data table map
information
The interscan
delay is the time
between scans.
It is the time the
communication
module will wait be-
tween the last poll
message and hte
start of the next
scan cycle.
The background
poll ratio sets the
frequency of poll
messages to a
device in relation to
the number of
I/O scans.
For example: if the
ratio is set at 10,
that device will be
polled once every
10 scans.
I/O communication
is the exchange
and transfer of input
and output data.
D
e
vic
e
N
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t
Manag
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Software as a
Configuration Tool
Allen-Bradley Drives

Allen-Bradley DeviceNet 1756-DNB Specifications

General

Brand	Allen-Bradley
Model	DeviceNet 1756-DNB
Category	Control Unit
Language	English