67
Reference Manual
IP2048/RM, Rev AA
Appendix A: Reference Data
January 2015
Figure A-2. Load limitations
A Field Communicator requires a minimum load resistance of 250 Ohm within the loop in order to function properly.
Communication with Mobrey MCU900 Series Control Unit does not require additional resistance. The maximum load resistance
can be determined from these diagrams:
Non-Intrinsically Safe Installations
Intrinsically Safe Installations
R (Ohms)
R (Ohms)
U (V)
U (V)
12
12
30
40
Mobrey MSP900GH
1244
800
400
0
20
30
20
1244
800
400
0
Mobrey MSP900GH
250
250
533
533
0
24
24
18
18
Note:
R = Maximum Load Resistance
U = External Power Supply Voltage
R (Ohms)
U (V)
12
30
20
1244
800
400
0
0
250
53
3
24
18
Mobrey MSP400RH
40
Содержание MSP400RH
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Страница 16: ...6 Reference Manual IP2048 RM Rev AA Section 2 Transmitter Overview January 2015 ...
Страница 54: ...44 Reference Manual IP2048 RM Rev AA Section 4 Starting up January 2015 ...
Страница 80: ...70 Reference Manual IP2048 RM Rev AA Appendix A Reference Data January 2015 ...
Страница 84: ...74 Reference Manual IP2048 RM Rev AA Appendix B Product Certifications January 2015 ...
Страница 87: ...77 Reference Manual IP2048 RM Rev AA Appendix C Integrated Display Menus January 2015 ...
Страница 90: ...80 Reference Manual IP2048 RM Rev AA Appendix C Integrated Display Menus January 2015 ...
Страница 98: ...88 Reference Manual IP2048 RM Rev AA Appendix E Field Communicator January 2015 ...