low at backplane bus • Switch on the CPU and/or the system power
supply modules.

Check to see if too many modules are inserted.
Flashes Off
The module starts and flashes until the valid
parameter assignment is set.
---
On Off
Module is configured
On Flashes
Indicates module errors (at least one error at
one channel, e.g., wire break).
Evaluate the diagnostics data and eliminate the
error (e.g., wire break).
Flashes Flashes
Hardware defective Replace the module.upply voltage L+ too low or missing Check the L+ supply voltage.
On
Supply voltage L+ is present and OK ---
CHx LED
Table 5- 3 CHx status display
LED CHx Meaning Remedy
Off
Channel deactivated ---
On
Channel configured and OK ---
On
Diagnostic alarm: e.g., wire break, overflow,
underflow
Check the wiring.
Disable diagnosticsThe analog output module AQ 8xU/I HS supports diagnostic interrupts.
You can find detailed information on the event in the error organization block with the
RALRM instruction (read additional interrupt info) and in the STEP 7 online help.
Diagnostic interrupt
The module generates a diagnostic interrupt at the following events:
● Missing supply voltage L+
● Short circuit to ground
● Wire break
● Overflow
● Underflow
● Parameter assignment errorA diagnostics alarm is generated and the ERROR LED flashes on the module for each
diagnostics event. The diagnostics alarms can be read out in the diagnostics buffer of the
CPU, for example. You can evaluate the error codes with the user program.
If the module is operated distributed with PROFIBUS DP in an ET 200MP system, you have
the option to read out diagnostics data with the instruction RDREC or RD_REC using data
record 0 and 1. The structure of the data records is available on the in the "Manual
for interface module IM 155-5 DP ST (6ES7155-5BA00-0AB0)Overload at output Eliminate overload
Short-circuit of output QV to MANA Eliminate the short-circuit
Wire break 6H Encoder circuit impedance too high Use a different actuator type or modify
the wiring, for example, use cables with
larger cross-section
Wirebreak between the module and
actuator
Connect the cable
Channel not connected (open) • Disable the channel ("output type"
parameter)
• Connect the channel
Overflow 7H The output value set by the user program
exceeds the valid rated
range/overshoot range.
Correct the output value
Underflow 8H The output value set by the user program
undershoots the valid rated
range/undershoot range.
Correct the output value
Parameter assignment
error
10H • The module cannot evaluate parameters
for the channel
• Incorrect parameter assignment.
Correct the parameter assignment
Load voltage missing 11H Supply voltage L+ of the module is
missing
Connect supply voltage L+ to moduleProduct type designation AQ 8xU/I HS
Hardware functional status FS01
Firmware version V2.1.0
• FW update possible Yes
Product function
I&M data Yes; I&M0 to I&M3
Scalable output range No
Engineering with
STEP 7 TIA Portal can be configured/integrated
as of version
V14 / -
STEP 7 can be configured/integrated as of version V5.5 SP3 / -
PROFIBUS as of GSD version/GSD revision V1.0 / V5.1
PROFINET as of GSD version/GSD revision V2.3 / -
Operating mode
Oversampling Yes
MSO Yes
CiR Configuration in RUN
Configuration in RUN possible Yes
Calibration in RUN possible Yes
Supply voltage
Rated value (DC) 24 V
Valid range, low limit (DC) 20.4 V
Valid range, high limit (DC) 28.8 V
Reverse polarity protection Yes
Input current
Current consumption, max. 260 mA; with 24 V DC supply
Power
Power consumption from the backplane bus 1.15 W
Power loss
Power loss, typ. 7 Wumber of analog outputs 8
Voltage output, short-circuit protection Yes
Voltage output, short-circuit current, max. 45 mA
Current output, open-circuit voltage, max. 20 V
Cycle time (all channels), min. 125 µs; regardless of the number of activated
channels
Output ranges, voltage
0 V to 10 V Yes
1 V to 5 V Yes
-10 V to +10 V Yes
Output ranges, current