Introduction - Precise Instrument DAT 400 Technical Manual

The DAT 400 is a transmitter of weight to be combined with the load cells to detect the weight in every
situation.
The module is easy to install and can be mounted on 35 mm DIN rail.
The display allows easy reading of the weight, the status of the instrument, the setting parameters and
errors.
The 4 keys located below the display allow the operator to perform the functions of ZERO, TARE,
GROSS/NET switching, setting of the setpoints weight, setting and tare both theoretical than real.
The DAT 400 uses the serial port RS232 with ASCII and Modbus RTU protocols for connecting to a PC,
PLC and remote units. In parallel with the RS232, a USB port available.
They are always available 2 programmable weight setpoints and the control of the maximum weight
value reached (peak).
The RS422/RS485 serial output allows you to connect up to 32 addressable devices.
The availability of the most common fieldbuses, as an alternative to the RS422/RS485 port, also allows
the transmitter to interface with any supervision device currently offered by the market.
Available versions:
DAT 400: weight transmitter with serial output RS232 (USB), RS485 and Peak function. Supported
protocols are Modbus RTU, continuous, slave and the ones upon request. Two programmable setpoints,
2 inputs and Peak function.
• DAT 400/A: version with the analog output.
• DAT 400/PROFIBUS: weight transmitter with serial output RS232 and PROFIBUS DP.
• DAT 400/DEVICENET: weight transmitter with serial output RS232 and DEVICENET.
IDENTIFICATION PLATE OF THE INSTRUMENT
It's important to communicate this data in the event of a request for information or information concer-
ning the instrument together with the program number and version that are shown on the cover of the
manual and are displayed when the instrument is switched on.
WARNINGS
The following procedures must be performed by qualified personnel.
All connections must be performed when the instrument is switched off.

INTRODUCTION

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