Rockwell Automation 1794-VHSC 1794 FLEX I/O Very High Speed Counter Module User Manual User Manual

Page 49

Rockwell Automation Publication 1794-UM010D-EN-E - July 2013

Communicate With Your Module

Output 0 Local control bit (LC) – When set to 1, output is controlled
the counter if the FlexBus power is lost (for instance, the module
detects a FlexBus reset signal).
Note: When FlexBus power is lost, communication to the PC is lost.
When LC = 0, the module clears its OE bit at a loss of FlexBus power.
Set this bit as appropriate in the safe state word, since a
communication fault occurs after adapter power is lost.

Not used – set to 0.

Output 1 Force output bit (FO) – When set to 1, output is turned on if
OE is 1. When FO = 0, output can be controlled by a compare match or
as directed by the PWM settings.

Output 1 Output enable bit (OE) – When set to 1, output can be
turned on from a force on, compare match or as directed by the PWM
settings. When OE = 0, the associated output is turned off.

Output 1 Local control bit (LC) – When set to 1, output is controlled
the counter if the FlexBus power is lost (for instance, the module
detects a flexbus reset signal).
Note: When flexbus power is lost, communication to the PC is lost.
When LC = 0, the module clears its OE bit at a loss of FlexBus power.
Set this bit as appropriate in the safe state word, since a
communication fault occurs after adapter power is lost.

Not used – set to 0.

08 (10)

Output 2 Force output bit (FO) – When set to 1, output is turned on if
OE is 1. When FO = 0, output can be controlled by a compare match or
as directed by the PWM settings.

09 (11)

Output 2 Output enable bit (OE) – When set to 1, output can be
turned on from a force on, compare match or as directed by the PWM
settings. When OE = 0, the associated output is turned off.

10 (12)

Output 2 Local control bit (LC) – When set to 1, output is controlled
the counter if the FlexBus power is lost (for instance, the module
detects a FlexBus reset signal).
Note: When FlexBus power is lost, communication to the PC is lost.
When LC = 0, the module clears its OE bit at a loss of flexbus power. Set
this bit as appropriate in the safe state word, since a communication
fault occurs after adapter power is lost.

11 (13)

Not used – set to 0.

12 (14)

Output 3 Force output bit (FO) – When set to 1, output is turned on if
OE is 1. When FO = 0, output can be controlled by a compare match or
as directed by the PWM settings.

13 (15)

Output 3 Output enable bit (OE) – When set to 1, output can be
turned on from a force on, compare match or as directed by the PWM
settings. When OE = 0, the associated output is turned off.

14 (16)

Output 3 Local control bit (LC) – When set to 1, output is controlled
the counter if the FlexBus power is lost (for instance, the module
detects a FlexBus reset signal).
Note: When FlexBus power is lost, communication to the PC is lost.
When LC = 0, the module clears its OE bit at a loss of FlexBus power.
Set this bit as appropriate in the safe state word, since a
communication fault occurs after adapter power is lost.

15 (17)

Not used – set to 0.

Bit/Word Definitions