Rockwell Automation 1797-OE8H FLEX Ex HART Analog Modules User Manual - Manual (Page 122)

Publication 1797-6.5.3 - March 2006
A-10 Specifications
1797-OE8H Output Module Specifications
Number of Outputs 8 single-ended, non-isolated
Outputs
Type of Protection EEx ia IIB/IIC T4
Module
Type of Protection EEx ib IIB/IIC T4
Resolution 13 bits
Transfer Characteristics
Accuracy at 20 °C (68 °F)
Temperature Drift 0.1% of output signal range
0.010%/C of output signal range
Load Range
Current
Voltage Available at 22 mA
Load 0…22 mA
> 15V
0…680
Ω @ 22 mA, 0…770 Ω @ 20 mA
Data Format Configurable
Step Response to 99% of FS 115 ms (in HART mode)
18 ms (in standard mode)
Module from Adapter
Best/Worst Update Time 200 ms/1600 µs
Indicators 8 red fault indicators
1 green power
8 yellow HART comm indicators
Output Ch 0…Ch 7
(Intrinsically Safe)
(Terminals: 0…1; 4…5;
8…9; 12…13; 17…18;
21…22; 25…26; 29…30)
U
O
< 21.6V
I
O
< 92 mA
P
O
< 500 mW
Isolation Path
Output to Power Supply
Output to FLEXBus
Output to Output
Power Supply to FLEXBus
Isolation Type
Galvanic to DIN EN50020
Galvanic to DIN EN50020
None
Galvanic to DIN EN50020
Power Supply
(+V, -V Intrinsically Safe)
(Terminals: 34/50 (+);
35/51 (-))
U
i
< 9.5V dc
I
i
< 1 A
L
i
= Negligible
C
i
= 120 nF
Module Field-Side Power
Consumption 6.1 W
Power Dissipation 5.4 W
Thermal Dissipation 20.8 BTU/hr
Module Location Cat. No. 1797-TB3 or -TB3S Terminal Base Unit
Conductors Wire Size 12 gauge (4mm 2 ) stranded maximum
1.2 mm (3/64 in) insulation maximum
Dimensions 46 x 94 x 75 mm (1.8 x 3.7 x 2.95 in)
Weight 200 g (approximately)