Modbus RTU RS-485
10
SFIDK.PS.023.D2.02
4.3 Menu item
explanation
4. Commissioning
Item Value Comments
Slave addr. 1-247 Device address
[Factory setting: 1]
Baud rate 1200, 2400, 4800, 9600, Communication speed
[Factory setting: 19200]
19200, 38400, 57600,
76800, 115200
Parity/framing Even, 1 stopbit Communication parameters
Odd, 1 stopbit
[Factory setting: Even, 1 stopbit]
None, 2 stopbit
None, 1 stopbit
Response timeout 0-25,5 sec. Max. response time. Used in time critical applica-
tions, where low cycle times are required. If the
response is not ready within the „Response
Timeout“ time, an exception code 6 (Busy acknowl-
edge) is returned and the request must be send
again.
[Factory setting: 10,0]
Response delay 0-255 msec. The minimum time from when a slave receives a
request and until it returns a response. This makes
it possible to send data to slow masters without
overwhelming its receiver.
[Factory setting: 0]
Interframe spacing 3,5-25 chars The minimum interframe space between two
Modbus RTU messages in sequence (specified as
3.5 characters) is configurable.
Range: 3.5 - 25 character times.
[Factory setting: 3,5]
TAG „Flowmeter“ The TAG can be changed to any string up to
16 chars.
[Factory setting: Flowmeter]
Modbus SW version 1.00 Firmware version of the Modbus module
Modbus HW version 2 Hardware version of the Modbus module
Comm. status Ok: xx Ok = Received messages without errors
Bad: xx Bad = Received messages with CRC errors
Reset after a power down
Frame status PE: xx PE = Number of parity errors
FE: xx FE = Number of framing errors
Reset after a power down
The settings are all stored in the non-volatile memory of the SENSORPROM
unit, and therefore
remembered after a power down. Even if the module or transmitter is replaced the settings are
kept.
If the SENSORPROM
unit is NOT used, then the settings are stored in the transmitters memory.
These settings will however be overruled if the SENSORPROM
unit is used again.
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