Xm-220 i/o message formats, Poll message format – Rockwell Automation 1440-SPD02-01RB XM-220 Dual Speed Module User Manual

Page 83

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Publication GMSI10-UM004B-EN-P - May 2010

DeviceNet Information 75

XM-220 I/O Message
Formats

The XM-220 module supports Poll and Change of State (COS) I/O messages.
The Poll response message is used by the XM modules to produce measured
values, and the COS message is used to produce the Alarm and Relay Status.

Poll Message Format

The XM-220 Poll request message contains no data. The Poll response
message can contain up to 31 REAL values for a total of 124 bytes.

The XM-220 provides three pre-defined (static) data formats of the Poll
response, as defined in Assembly instance 101-103. It also provides a dynamic
Assembly instance, instance 199, with which you can define a custom data
format for the Poll response. The dynamic Assembly instance can contain any
of the measurement parameters included in Assembly instance 101, as well as
several of the alarm and relay configuration parameters.

The default Assembly instance is 101 and the default size is 32 bytes. You can
change the Assembly instance and define the dynamic Assembly using the
configuration software. Refer to I/O Data Parameters on page 59.

The Poll response data can also be requested explicitly through Assembly
Object (Class ID 0x4), Instance 101 (0x65), Data Attribute (3).

0A

Too many alarms associated with a single measurement.

0B

Invalid node address in the alarm list.

0C

Too many alarms in the alarm list. Or, no alarms in the alarm list.

0D

Alarm levels cannot be zero for alarms that are enabled.

0E

Too many slaves in the scanner’s input data table.

0F

The FMAX and Number of Lines do not yield correct vector calculations.

10

Phase (vector) alarms prohibited with synchronous sampling and more
than 1 tachometer pulse per revolution.

11

Can’t have order based band on asynchronous channel.

12

Unsupported Sensor Type and Channel ID combination.

13

Invalid Alarm Type for the associated measurement ID.

14

Synchronous sampling is required for alarm on synchronous
measurements.

15

Integration is not supported with the Bypass High Pass Filter option.

Additional Error Codes returned with the Invalid Device Configuration Error (0xD0)

Error Code
(Hex)

Description

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