Rockwell-automation 1794-IB16D_OB16D Flex I/O 16 Input and 16 Output w Manuale Utente Scaricare il pdf (Pagina 3)

Publication 1794-IN096B-EN-P - February 2004

6. If continuing dc common to the next base unit, connect a jumper

from terminal 33 (common) on this base unit to terminal 16 on the

next base unit

1794-TB2, -TB3, and -TB3S Terminal Base Wiring for the

1794-OB16D

Wiring Connections for the 1794-OB16D (use with 1794-TB2,

-TB3 or -TB3S terminal base units)

Diagnostics

(See configuration information below for location of diagnostic bits.)

Note: Each unused sensor port requires a dummy resistor to mask the

channel diagnostic function.

Diagnostic Functions for the 1794-IB16D)

Diagnostic Functions for the 1794-OB16D

Note: Each unused output port requires a dummy resistor to mask

the channel diagnostic function.

Outputs Output Terminal Common Terminal

Output 00 A-0 B-17

Output 01 A-1 B-18

Output 02 A-2 B-19

Output 03 A-3 B-20

Output 04 A-4 B-21

Output 05 A-5 B-22

Output 06 A-6 B-23

Output 07 A-7 B-24

Output 08 A-8 B-25

Output 09 A-9 B-26

Output 10 A-10 B-27

Output 11 A-11 B-28

Output 12 A-12 B-29

Output 13 A-13 B-30

Output 14 A-14 B-31

Output 15 A-15 B-32

+V dc C-34 and C-51 (1794-TB2) (Power Terminals are internally connected in

the terminal base unit.

C-34 thru C-51 (1794-TB3, -TB3S) (Power terminals are internally

connected in the terminal base unit.

Common B-16 thru B-33 (Common terminals are internally connected in the

terminal base unit.

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

Outputs

Commons

(1794-TB3 show

-V (Supply Common) = Terminals B-16 thru B-33

+V (Supply +Voltage In) = Terminals C-34 thru C-51

-V

Voltage

In +V

Voltage

Out +V

Voltage

(Use B-33 and C-51 for daisy-chaining to next terminal base unit)

Common

-V

Common

Terminals 35 thru 50 not available on 1794-TB2

Ext.

Power

Wiring Input

Status

Channel

LED

Status

Open

Wire

Error Bit

Short

Error

Bit

Rev.

Error

Bit

Module

Error

Bit/LED

OFF Open Off Off 0 0 0 0/OFF

On Off 0 0 0 0/OFF

Short Off Off 0 0 0 0/OFF

On Off 0 0 0 0/OFF

Normal Off Off 0 0 0 0/OFF

On Off 0 0 0 0/OFF

ON Open Off RED 1 0 0 1/RED

On RED/YEL 1 0 0 1/RED

Short Off RED 0 1 0 1/RED

On RED/YEL 0 1 0 1/RED

Normal Off Off 0 0 0 0/OFF

On YEL 0 0 0 0/OFF

REV Open Off Off 0 0 1 1/RED

On Off 0 0 1 1/RED

Short Off Off 0 0 1 1/RED

On Off 0 0 1 1/RED

Normal Off Off 0 0 1 1/RED

On Off 0 0 1 1/RED

The module monitors each sensor-power port for current and voltage. It turns on the channel red LED and sets

(1) the error bit when 1) the module detects a short circuit (no voltage at the sensor-port), and 2) the module

detects an open wire ( no current at the sensor-port).

Ext.

Power

Wiring Output

Status

Channel

LED

Status

Open

Wire Error

Bit

Short

Error

Bit

Rev.

Error

Bit

Module

Error

Bit/LED

OFF Open Off Off 0 0 0 0/OFF

On Off 0 0 0 0/OFF

Short Off Off 0 0 0 0/OFF

On Off 0 0 0 0/OFF

Normal Off Off 0 0 0 0/OFF

On Off 0 0 0 0/OFF

ON Open Off RED 1 0 0 1/RED

On YEL 0 0 0 0/OFF

Short Off Off 0 0 0 0/OFF

On RED 0 1 0 1/RED

Normal Off Off 0 0 0 0/OFF

On YEL 0 0 0 0/OFF

REV Open Off Off 0 0 1 1/RED

On Off 0 0 1 1/RED

Short Off Off 0 0 1 1/RED

On Off 0 0 1 1/RED

Normal Off Off 0 0 1 1/RED

On Off 0 0 1 1/RED

The module monitors each output channel. It turns on the channel red LED and sets (1) the error bit when 1)

the module detects a short circuit (the output signal is active at a channel and the corresponding output

voltage is low), and 2) the module detects an open wire (the output signal is inactive at a channel and the

corresponding output voltage is high).

1 2 3 4 5 6

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