Thiết bị giao tiếp Bartec 07-7331-230H/1010 PROFIBUS Interface 8 x 4 to 20 mA in/4 x 4 to 20 mA in/out (16 Bit) Bartec 140698-7
8 x 4 to 20 mA in Ex i In the Ex i version, the MODEX 8 x 4 to 20 mA module
with 8 analogue inputs enables 8 analogue intrinsically safe signals to be fed
in or evaluated. For example, intrinsically safe two-wire transmitters or active
4 - 20 mA signals can be imported as signals. 4 x 4 to 20 mA in & out Ex i
In the Ex i version, the MODEX 4 x 4 to 20 mA module with 4 analogue inputs
enables 4 analogue intrinsically safe signals to be fed in or evaluated and additionally the control of intrinsically safe actuators using 4 x 4 to 20 mA outputs.
The input signal has 16-bit resolution and is transmitted with high interference
resistance. Both modules are connected to the process control system via the
PROFIBUS-DP. Coding rotary switches are available for addressing the module.
Diagnostics data indicating the status of the outputs with respect to a disconnection or short-circuit can also be transmitted in addition to the user data.
This is also displayed on the module itself using LEDs.