Omron E5ZN-DRT Operation Manual page 107

Overview of Explicit Message Communications
Response Block
Number of Bytes Received
Source Node Address
Service Code
Data
Error Code
92
Note The number of digits used for the Class ID, Instance ID, and Attribute ID
depends on the master used. When sending parameters from an OMRON
Master Unit, the values are expressed as follows:
Class ID:
Instance ID: 4-digit (2-byte) hexadecimal
Attribute ID: 2-digit (1-byte) hexadecimal
• The following format is used when a normal response is returned for the
sent explicit message.
No. of bytes
received
• The following format is used when an error response is returned for the
sent explicit message.
No. of bytes
received
0004 hex, fixed
The number of data bytes received from the source node address is returned
as a hexadecimal. When an error response is returned for the explicit mes-
sage, the contents is always 0004 hex.
The node address of the master that sent the explicit message is returned as
a hexadecimal.
For normal responses, the value for when the most significant bit (bit 07) of
the service code specified in the command turns ON is returned. (When the
service code of the command is 0E hex, the service code of the response will
be 8E hex.) When an error response is returned for the explicit message, the
contents is always 94 hex.
Read data is included only when a read command is executed.
The following table shows the error codes for explicit messages.
Error Error name
code
08FF Service not supported The service code is not supported.
09FF Invalid Attribute value
16FF Object does not exist
15FF Too much data
13FF Not enough data
14FF Attribute not supported The Instance ID is not supported.
0CFF Object state conflict
20FF Invalid Parameter
0EFF Attribute not settable
1F** Vendor specific error
Note For DeviceNet Communications Units, set the DeviceNet message monitor
timer to 6 s or longer, using the following procedure.
4-digit (2-byte) hexadecimal
Source node
Service code
address
Source node
Service code
address
The Attribute Value is not supported.
The Instance ID is not supported.
The data string is too long.
The data string is too short.
The command cannot be executed.
• Error in communications with Temperature Con-
troller.
• The BCC value did not match in the response
from the Temperature Controller.
The specified parameter is incorrect.
A write service code was sent for a read-only
Attribute ID.
An error response was returned for a CompoWay/F
message sent to the Temperature Controller.
Note The ** in the code indicate the MRC of the
CompoWay/F response.
Section 6-1
Data
Error code
(2 bytes, fixed)
Cause