Rockwell-automation 1797-OE8H FLEX Ex HART Analog Modules User Manual Manual de usuario descargar pdf (Pagina 136)

Publication 1797-6.5.3 - March 2006

B-12 FLEX Ex HART Module Commands

Command 137

For the given long frame addresses, the Write SCAN Status of the Transmitters

command sets the SCAN status of the transmitters (0 = disable SCAN, 1 =

enable SCAN). No more than 31 instruments may be requested.

Command-specific Response Codes

5 Error Too few data bytes received

16 Error Access restricted

17 Error Too many items requested

32 Error Busy

Table B.12 Command 137 Request and Response Data Bytes

Byte Description Value

Request Data Bytes

0…4 EXT_ADDR_0 Extended address of instrument 0 —

5 COUNT_0 Bytes before next item

6 SCAN_0 Scan enable/disable on instrument 0 0 = Scan disable

1 = Scan enable

… EXT_ADDR_I Extended address of instrument I —

… COUNT_I Bytes before next item

… SCAN_I Scan enable/disable on instrument I

…… …

Response Data Bytes

0…4 EXT_ADDR_0 Extended address of instrument 0 —

5 COUNT_0 Bytes before next item

6 ERROR_0 Error 0 0 = No error.

31 = The scan

value sent is

identical to the

current one.

64 = Unknown

instrument. No

data is included

for that

instrument.

65 = Scan value

not allowed. No

data included for

that instrument.

Table B.11 Command 136 Request and Response Bytes

Byte Description Value

1 2 ... 131 132 133 134 135 136 137 138 139 140 141 ... 195 196

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Rockwell-automation 1797-OE8H FLEX Ex HART Analog Modules User Manual Manual de usuario Pagina 136