7 selecting input and output assemblies, 8 enabling network control – Rockwell Automation VSM500 Integrated Drive/Motor DeviceNet Option Board User Manual
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Configuring the VSM500 Unit and DeviceNet Option Board
3-7
3.7
Selecting Input and Output Assemblies
The VSM500 unit uses Assembly Objects to send data to and from a scanner over an
I/O connection. The terms
input and output are defined from the scanner’s point of
view. An output assembly is the information that is
output by the scanner and
consumed by the VSM500 unit. An input assembly is the status data that is sent by the
VSM500 unit and consumed as
input by the scanner. Refer to Chapter 5 for a
discussion on control I/O and assemblies.
DeviceNet parameters 107 [
OUTPUT
ASSEMBLY
] and 108 [
INPUT
ASSEMBLY
] must be
set with the output or input assembly for your system.
Step 1. In the Device Configuration - Enhanced Mode dialog box (see figure 3.8),
double-click parameter 107 [
OUTPUT
ASSEMBLY
]. The Device Configuration -
Modify Numeric Parameter dialog box appears.
Step 2. Select the desired assembly number, and then click Save to Device. Refer to
the Parameter List in Appendix B for a list of values.
Step 3. Click OK to close the dialog box.
Step 4. Repeat steps 1 through 3 for parameter 108 [
INPUT
ASSEMBLY
].
3.8
Enabling Network Control
In order for a scanner to control the VSM500 unit (e.g., start or stop), the VSM500 unit
must be configured to accept commands from the network.
Important: The drive requires a stop input at the control terminal bock, regardless of
the setting of parameter 34 [
START
SOURCE
].
Step 1. In the Device Configuration - Enhanced Mode dialog box (see figure 3.8),
double-click parameter 34 [
START
SOURCE
]. The Device Configuration -
Modify Enumerated Parameter dialog box appears.
Figure 3.11 – Modifying the Output Assembly Parameter
!
ATTENTION: Changing the source of control may cause unpredictable
network conditions, resulting in equipment damage, injury, or death.
Ensure that you understand how a change affects your application.
Failure to observe these precautions could result in severe bodily injury
or loss of life.