Optional Configuration
8.10.2DeviceNet baud rate
The default baud rate for the Model 2400S DN transmitter is 125 kBaud. Valid baud rates are listed in Table
The baud rate can be set using a digital communications hardware switch or a DeviceNet tool. If the device cannot determine what its baud rate should be, it defaults to 500 kBaud.
Note: You cannot set the baud rate from ProLink II or the display.
To set the baud rate using the digital communications hardware switch:
1.Remove the transmitter housing cover as described in Section 3.3.
2.Identify the baud rate switch (the right switch) on the user interface module of your transmitter. See Section 3.3.
3.Insert a small blade into the slot on the switch and rotate the arrow to the desired position. See Table
Table 8-11 Baud rate codes
Switch position | Baud rate |
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0 | 125 kBaud |
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1 | 250 kBaud |
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2 | 500 kBaud |
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Controlled by DeviceNet system | |
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Using a DeviceNet Tool
Required Configuration
4.Replace the transmitter housing cover.
5.Either power cycle the transmitter or send a Reset service (0x05) to the Identity Object (0x01), Instance 1.
Note: The new baud rate is not implemented until Step 5 is completed.
To set the baud rate using a DeviceNet tool:
1.Use the digital communications hardware switch to set the baud rate to any value in the Program range (values
2.Set the baud rate in the DeviceNet Object (0x03), Instance 1, Attribute 2, data type USINT.
Note: If the baud rate digital communications hardware switch is not in the Program range, the Set service will return the error code 0x0E (Attribute Not Settable).
3.Either power cycle the transmitter or send a Reset service (0x05) to the Identity Object (0x01), Instance 1.
Note: The new baud rate is not implemented until Step 3 is completed.
8.10.3DeviceNet configurable input assembly
The Model 2400S transmitter provides 25 predefined input assemblies and one configurable input assembly. The configurable input assembly allows you to specify five process variables to be published to the network.
Note: For a listing of the predefined input assemblies and the default values for the configurable input assembly, see Table
Using the Transmitter
Optional Configuration
Configuration and Use Manual | 71 |
