Short circuit to ground
Enabling of the diagnostics if a short-circuit of the actuator supply (CHx) to ground occurs.
Maintenance switching cycles
You use this parameter to enable the maintenance interrupt "Limit value warning" when the
switching cycle limit is violated.
You configure the limit with the parameter "Switching cycle limit" for each channel CHx.
Switching cycle counter
Channel-by-channel enable of switching cycle counter (Page 13).
Wire break
Enabling of the diagnostics if the line to the actuator is broken.
Reaction to CPU STOP
Determines the reaction of the output when the CPU goes into the STOP state or when the
connection to the CPU is interrupted.
Switching cycle limit
Defines the limit channel-by-channel. If this value is exceeded, the "Limit value warning"
maintenance interrupt is signaled.
Enter an integer value between 0 and 16777214. Refer to the data sheet of the connected
actuator. We recommend that you do not enter this maximum value, but instead set it to 80%
or 90%, for example, so that you have enough time to replace the actuator as a preventive
measure.The module can be configured differently in STEP 7; see following table. Depending on the
configuration, additional/different addresses are assigned in the process image of the
outputs/inputs.
Configuration options of DQ 16x24VDC/0.5A HF
You can configure the module with STEP 7 (TIA Portal) or with a GSD file.
When you configure the module by means of the GSD file, the configurations are available
under different abbreviations/module names.
The following configurations are possible:1 x 16-channel without value status DQ 16x24VDC/0.5A HF X X
1 x 16-channel with value status DQ 16x24VDC/0.5A HF QI X X
2 x 8-channel without value status DQ 16x24VDC/0.5A HF S X
(PROFINET IO only)
X
(PROFINET IO only)
2 x 8-channel with value status DQ 16x24VDC/0.5A HF S QI X
(PROFINET IO only)
X
(PROFINET IO only)
1 x 16-channel with value status for
module-internal Shared Output with up to
4 submodules
DQ 16x24VDC/0.5A HF
MSO
X
(PROFINET IO only)
X

(PROFINET IO only)If the system is in shared device mode and one of the IO controllers involved goes into
STOP or fails due to a communication failure, for example, all submodules of the output
module perform the configured substitute value reaction (e.g. shutdown).
This means that even when only one IO controller fails, the other IO controllers associated
with the shared device no longer control the assigned submodule of the output module.The value status is always activated for the following module names:
● DQ 16x24VDC/0.5A HF QI
● DQ 16x24VDC/0.5A HF S QI
● DQ 16x24VDC/0.5A HF MSO
An additional bit is assigned to each channel for the value status. The bit for the value status
indicates if the output value specified by the user program is actually pending at the module
terminal (0 = value is incorrect).
Note
The maintenance interrupt "Limit value warning" has no effect on the value status.
Address space for configuration as 16-channel DQ 16x24VDC/0.5A HF
The following figure shows the assignment of the address space for the configuration as a
16-channel module with value status. You can freely assign the start address for the module.
The addresses of the channels are derived from the start address.
The letters "a to d" are printed onto the module. "QB a" stands for module start address For the configuration as a 2 x 8-channel module, the channels of the module are divided into
multiple submodules. The submodules can be assigned to different IO controllers when the
module is used in a shared device.
The number of IO controllers depends on the interface module used. Please observe the
information in the manual for the particular interface module.
Contrary to the 1 x 16-channel module configuration, each of the two submodules has a
freely assignable start address. The addresses for the respective value status of a
submodule can also be assigned by the user.for configuration as 1 x 16-channel DQ 16x24VDC/0.5A HF MSO
For the configuration as a 1 x 16-channel module (module-internal shared output