OTT HydroMet SUTRON XLINK 100, Руководство по эксплуатации и техническому обслуживанию

Страница: 209 / 248

Page 209 of 248
Modbus Server Delay before Tx
Default is 0ms. This identifies the number of milliseconds to wait before starting data transmission. This is
useful if the device is connected to a radio requires keying initialization before data transmission.
This is a Modbus server setting only. There is no delay when the station is a Modbus client.
Modbus Server Delay after Tx
Default is 0ms. This identifies the number of milliseconds to wait after data transmission. This is useful if
the device is connected to a radio that requires a hold-off time after data transmission has completed.
If this value is other than zero, it may cause communications issues!
This is a Modbus server setting only. There is no delay when the station is a Modbus client.
19.3.2 Modbus Measurement Settings
These settings appear on the Measurement tab of LinkComm. To have the station act as a Modbus client,
choose Modbus as the Measurement Type.
Modbus Port
This is a measurement setting that tells the station which port the Modbus sensor is connected to.
Options include RS-485 and RS-232.
Modbus Device Id
Modbus Device Id indicates what sensor to collect data from. For the station to collect data from a
Modbus server
, the station’s Modbus Device Id must match that of the sensor.
This setting should come into play only if there are multiple sensors on the bus.
Modbus Reg Type
Modbus Reg Type needs to correspond to the type of register that contains the desired sensor data.
Options include Coil, Discrete, Holding, and Input. Please check th
e sensor’s do cumentation for details on
registers.
Coil and Discrete register types imply that the station will collect one byte from the sensor and consider
the least significant bit of the byte.
Modbus Reg Number
Modbus Reg Number tells the station which of the sen sor’s registers to access. These values are unique to
the sensor that is connected. Most sensors provide multiple registers which may be read.
Modbus Value
Modbus Value tells the station how much data to collect and how to interpret it.

Short means collect data from one register and interpret them as a 16 bit signed integer.

Ushort implies a 16-bit unsigned integer.

Int and Uint indicate 32 bit signed and unsigned values respectively; the station will read 2
registers for them.