Beckhoff EL3255 Precise load cell input terminal (RMB)
The EL3356 is a 16-bit and the EL3356-0010 a 24-bit with Distributed
clocks input terminal which enables direct connection to a 4- or
6-wire strain guage. It is a highly accurate factory calibrated
measurement device.
This input terminal has a vast configuration scope and it is
imperitive to consult the documentation.
The slave can also be used as a dual ADC instead of the RMB mode
(resistance measurement bridge) with input range of ca. 13V and
27mV. This mode is not calibrated by the manufacturor. (Only the
bridge measurement mode RMB is calibrated).
Block inputs are the binary control inputs.
- Start calibration
- Disable calibration
- Input freeze
- Sample Mode (EL3356-0010 only)
- Tara
Block outputs:
- The first output port is RMB value or ADC Value
- 1 status port for RMB; 2 ports for ADC
with input range of ca. 13V and
27mV. This mode is not calibrated by the manufacturor. (Only the
bridge measurement mode RMB is calibrated).
- Time signal (EL3356-0010 using DC)
Status port in RMB Mode:
- Overrange
- Data invalid
- Error
- Calibration in progress
- Steady state
Status port in ADC Mode:
- Underrange
- Overrange
- Error
Apart from the common slave options, the
following options can configure the slave.
2 ch ADC only
The terminal is used as a dual ADC, instead of default RMB mode.
Distributed clock
Only available for EL3356-0010
CoE Configuration
Here the slave is configured according to the documentation.
Note: Configuring Dynamic filter delta #x8000:14
This is a real32 value, while the mask input can only accept integer
values. To convert, use matlab's num2hex() function:
e.g. hex2dec(num2hex(single(20.0)))