Identity Object (Class Code 01H); Message Router (Class Code 02H) - GE Multilin MM200 Communications Manual

CHAPTER 3: FIELDBUS INTERFACE

Identity Object (Class Code 01H)

Message Router (Class Code 02H)

MM200 MOTOR MANAGEMENT SYSTEM – COMMUNICATIONS GUIDE
Commands are actioned on a change in Output data.
The example diagram below shows the MM200 polled I/O data read/written using a
DeviceNet master simulator. In this example, the "Start A" command has been sent via
Output data. In reading the Input data and interpreting the first byte value (98h) based on
the data format for that byte (FC129) the following is true:
• Auto control is enabled
• Contactor A is energized
• Drive Available is true
In the event that there is a communication fault, and a pre-fault polled output command
caused the MM200 to start a motor, the motor will continue to run even after the
communication fault.
Figure 3-10: DeviceNet polled I/O data
Table 3-14: Identity Object, Class Code 01h, Services:
CODE
0x05
0x0E
Table 3-15: Identity Object, Class Code 01h, Attributes:
ATTRIBUTE ACCESS
01h Get
Table 3-16: Identity Object, Class Code 01h, Instance 01h, Attributes:
ATTRIBUTE ACCESS NAME/DESCRIPTION
01h Get Vendor ID
02h Get Device Type
03h Get Product Code
04h Get Revision (Major, Minor)
The message router (class code 2) object provides a messaging connection point through
which a client may address a service to any object or instance residing in the physical
device. There is no external visible interface to the message router object.
SERVICES AVAILABLE TO THIS OBJECT
NAME DESCRIPTION
Reset Reset the device to power up configuration
Get_Attribute_Single Returns the contents of the given attribute
NAME/DESCRIPTION
Revision of Identity Object
DATA TYPE
UINT
UINT
UINT
USINT
DEVICENET PROTOCOL
DATA TYPE VALUE
UINT 1
VALUE
928
12
0x4D47
1.1
3-47