Danfoss VACON 1000 Operating Manual page 71

VACON® 1000 Fieldbus Options
Operating Guide
6.5.3 I/O Configuration
DeviceNet input bytes can be configured as 8 bytes, 16 bytes, 32 bytes, 64 bytes, 96 bytes, 128 bytes, or 160 bytes.
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DeviceNet output bytes can be configured as 8 bytes, 16 bytes, 32 bytes, 64 bytes, 96 bytes, and 112 bytes.
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6.5.4 DeviceNet™ Parameters
• Modbus_status: The value shows the status of Modbus communications. If it stays zero, the Modbus communication is OK. If it is
a non-zero value, the communication of the command has failed.
•
Input bytes: Number of DeviceNet
• Output bytes: Number of DeviceNet
The parameter settings for Input bytes and Output bytes must be the same as the input/output bytes in the DeviceNet
scanning list, or the connection cannot be established.
• Mod_Output_Ctrl: Modbus output control.
- Continuous Output
- Disable Output
- Output of Status Change: When the network output data has changed, Modbus commands can be sent.
If the output mode is set to Disable Output, the gateway does not send Modbus output commands even if it has configured
Modbus output commands.
-
To ensure the security of the output data, if the PLC has no effective output data, Modbus output commands are not sent.
This can happen, for example, if the PLC is in programming mode or no DeviceNet
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I/O input bytes.
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I/O output bytes.
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N O T I C E
N O T I C E
device has been connected.
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DeviceNet™
master
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