Allen-Bradley devicenet modules in logix5000 control systems Benutzerhandbuch
Publication DNET-UM004A-EN-P - March 2004
1-4 Before You Begin
❑ 5. Calculate how much scanner memory you need. (For more information, see page 1-11.)
❑ 6. Assign an address to each device. The following addresses are recommended but not required. (For more information, see
Tip: For flexibility as you develop your system, leave gaps between addresses. Gaps have no effect on system performance.
Give this address:
To this device:
0
Scanner
1 to 61
Your devices
Give the lower addresses to devices with 15 bytes or more of input or output data.
62
Computer interface, such as a 1770-KFD or 1784-PCD device
63
Leave open for new or replacement devices.
❑ 7. Make sure you have the required software.
❑ To configure the network:
❑ To program the controller, use RSLogix™ 5000 software.
❑ To connect your computer to the network, use RSLinx® software.
❑ To connect your computer to the network, use RSLinx® software.
Device
Address
Input Size of
Device
(bytes)
Input Memory
in Scanner
(DINTs)
Output Size
of Device
(bytes)
Output Memory
in Scanner
(DINTs)
start/stop buttons
1
1
1
1
<empty>
2
2
I/O adapter w/ modules
9
3
5
2
<empty>
2
2
Total
8
7
A. List the devices on your network.
B. Record how many bytes each device sends to your control system (input
data) and gets from your control system (output data).
C. Convert the input and outputs sizes to DINTs, where:
DINTs = (bytes/4) rounded up to an integer.
D. Add several DINTs between each device in case you want to make
changes later.
E. Total memory that you need in the
scanner.
If:
And your scanner is:
Configure the network with:
every device on your network (except the scanner)
uses 4 or less bytes of input and output data
uses 4 or less bytes of input and output data
• ControlLogix® 1756-DNB
• FlexLogix™ 1788-DNBO
• FlexLogix™ 1788-DNBO
RSLogix™ 5000 software (For more
information, see chapter 4.)
information, see chapter 4.)
some devices use more than 4 bytes of input or
output data
output data
any