Parker PAC, Installation Manual, Page: 111 / 197

Module control
The Module provides you with various operational options. To set up the Module, choose the options as
appropriate and accept by setting control bit "SetOptions" to a rising edge. The Module will confirm by
returning "OptionsSet".
There are various "Module error" bits that the Module uses to indicate errors. The states of the error bits
are retained and also used for error indication by the "IO" LED. To reset the error bits, set control bit
"ResetError" to a rising edge.
Variable Data type Explanation
SetOptions BOOL Rising edge

accepts Module options
ResetError BOOL Rising edge

acknowledges error
Module Options
The following options are available for the PACIO AO4-VDC/mA 12 Bit Module. To set and accept options,
Variable Data type Explanation
Channel_n_On BOOL
Enables channel n
(set to high impedance to disable)
Channel_n_Current BOOL Sets channel n to current output mode
Chan1_Unipolar BOOL Sets channels 1 and 2 or 2 and 3 to unipolar mode
Outputs_Active_Shortcut BOOL Leave outputs unchanged after short circuit
Outputs_Active_Undervoltage BOOL Leave outputs unchanged after low voltage
Outputs_Active_Specific_Error BOOL Leave outputs unchanged after Module-specific error
Outputs_Active_EtherCAT_Error BOOL Leave outputs unchanged after short circuit
n 3 Channel number
Module State
The following Module states are indicated. To reset the messages, .
Variable Data type Explanation
Shortcut BOOL Short circuit (not used)
Undervoltage BOOL Low voltage (supplied power < 19.2V)
Watchdog BOOL Module internal watchdog
EtherCAT_Error BOOL Configuration error or watchdog control
Specific_Error BOOL Module-specific fault
OptionsSet BOOL Sent by Module to acknowledge SetOptions