6 DeviceNet Communications
6.9.2 Reading Trace Data
6-76
6
Error Response
Reading Word Data
Command Block
Response Block
Note 1.
The maximum number of words is 100.
2.
If the settings for the beginning address and the number of words exceed the data capacity (data
traces 1 and 2: 1,000 words; I/O traces 1 and 2: 63 words), the number of words of data to be
read will be returned without generating an error.
Example: If the address is 1000 and the number of words is 10, only one word of data for
address 1000 will be returned.
Error Response
94
Number of bytes
received
Error code
Service code
(94 fixed)
Source node
address
Service code
(1D fixed)
Class ID
Instance ID
Address, Low
Address, High
Number of words to read
1D
00
67
Destination
node address
9D
Number of bytes received
Service code
(9D fixed)
Word data, Low
Word data, High
Word data, Low
Word data, High
Read data (200 bytes max.)
Source node
address
94
Number of bytes
received
Error code
Service code
(94 fixed)
Source node
address
Summary of Contents for OMNUC W R88A-NCW152-DRT
Page 1: ...Cat No I538 E3 1 DeviceNet Option Unit OMNUC W Series Model R88A NCW152 DRT...
Page 53: ...4 Connectors 4 5 3 DeviceNet Network Configuration Restrictions 4 22 4...
Page 97: ...5 Parameter Settings 5 3 8 Notch Signal Output Positioning 5 44 5...
Page 211: ...8 Servo Driver Settings 8 5 3 Absolute Encoder Multi turn Limit Setting 8 24 8...
Page 257: ...9 Troubleshooting 9 46 9...
