Instruction manual

ROC800-Series Instruction Manual
3-24 Power Connections Revised Jul-14
Table 3-19. Power Consumption of the HART-2 Module
Other Device
Power Consumption (mW)
Quantity
Used
Duty
Cycle
Sub-Total
(mW)
Description P
TYPICAL
HART-2 Module Base
110 mA @ 12 volts dc
1320 mW
Each Channel
Channel’s mA current
draw from +T
*
2.50
*
12
Table Total
Table 3-20. Power Consumption of the IEC 62591 Module
I/O Module
Power Consumption (mW)
Quantity
Used
Duty
Cycle
Sub-Total
(mW)
Description P
TYPICAL
IEC 62591 Module
1
Pm-12 (12V) WiHart card
only
552 mW 1
Pm-24 (24V) WiHart card
only
720 mW 1
Pm-12 (12V) WiHart w/
Transmitter
1080 mW 1
Pm-24 (24V) WiHart w/
Transmitter
1200 mW 1
Table Total
Duty Cycle
An IEC 62591 has no associated duty cycle. Consequently, always set
“1” as the duty cycle value.
Table 3-21. Power Consumption of the NRM Module
I/O Module
Power Consumption (mW)
Quantity
Used
Duty
Cycle
Sub-Total
(mW)
Description P
TYPICAL
NRM Module
1
Pm-12 (12V) Joining
Network
780 mW 1
Pm-24 (24V) Joining
Network
720 mW 1
Pm-12 (12V) linked to
Network
240 mW 1
Pm-24 (24V) linked to
Network
240 mW 1
Table Total
Duty Cycle
An NRM has no associated duty cycle. Consequently, always set “1”
as the duty cycle value.