WAGO I/O-SYSTEM 750 User manual

Fieldbus Independent
I/O Modules
2 AO 0/+-10V DC 16 Bit
750-562
Manual
Version 1.1.1

ii • General
WAGO-I/O-SYSTEM 750
I/O Modules
Copyright 2009 by WAGO Kontakttechnik GmbH & Co. KG
All rights reserved.
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generally trademark or patent protected.

Content • iii
WAGO-I/O-SYSTEM 750
I/O Modules
Content
1.1 Scope ........................................................................................................4
2I/O Modules.................................................................................................4
2.1 Analog Output Modules ........................................................................... 4
2.1.1 750-562 [2 AO 0/+-10V DC 16 Bit] ...................................................4
2.1.1.1 View................................................................................................4
2.1.1.2 General Description ........................................................................ 4
2.1.1.3 Connecting Elements ...................................................................... 6
2.1.1.4 Indicators.........................................................................................6
2.1.1.5 Operating Elements.........................................................................6
2.1.1.6 Schematic Diagram.........................................................................7
2.1.1.7 Process
Image .................................................................................8
2.1.1.7.1 Process
Values ...........................................................................8
2.1.1.8 Function Description.....................................................................11
2.1.1.8.1 Step 1 – Reading Out XIN Process Data...................................11
2.1.1.8.2 Step 2 – Y1User Scaling..........................................................12
2.1.1.8.3 Step 3 – Y2Conversion of the Data Format............................. 13
2.1.1.8.4 Step 4 – Y3 Limit Control......................................................... 13
2.1.1.8.5 Step 5 – YDAC Calibration.........................................................14
2.1.1.9 Parameter Setting.......................................................................... 15
2.1.1.9.1 Register Assignment ................................................................ 15
2.1.1.9.2 Data Structures.........................................................................20
2.1.1.9.2.1 Configuration Concept ........................................................ 20
2.1.1.9.2.2 Switching the Operating Mode............................................20
2.1.1.9.2.3 Register Access and EEPROM Banks ................................20
2.1.1.9.3 Parameterization via WAGO-I/O-CHECK..............................22
2.1.1.9.3.1 User Interface ...................................................................... 22
2.1.1.9.4 Parameterization via GSD........................................................31
2.1.1.10 Technical Data .............................................................................. 32
3Use in Hazardous Environments .............................................................34
3.1 Marking Configuration Examples.......................................................... 35
3.1.1 Marking for Europe according to CENELEC and IEC .....................35
3.1.2 Marking for America according to NEC 500 ....................................38
3.2 Installation
Regulations..........................................................................39
3.2.1 Special Conditions for Safe Operation of the ATEX and IEC Ex (acc.
DEMKO 08 ATEX 142851X and IECEx PTB 07.0064)..................40
3.2.2 Special conditions for safe use (ATEX Certificate TÜV 07 ATEX
554086 X) .......................................................................................... 41
3.2.3 Special conditions for safe use (IEC-Ex Certificate TUN 09.0001 X)43
3.2.4 ANSI/ISA 12.12.01 ........................................................................... 45

4 •0BI/O Modules
Scope
WAGO-I/O-SYSTEM 750
I/O Modules
1.1 Scope
This manual describes the Analog Output Module 750-562
2 AO 0/+-10V DC 16 Bit of the modular WAGO-I/O-SYSTEM 750.
Handling, assembly and start-up are described in the manual of the Fieldbus
Coupler. Therefore this documentation is valid only in the connection with the
appropriate manual.
2 I/O Modules
2.1 Analog Output Modules
2.1.1 750-562 [2 AO 0/+-10V DC 16 Bit]
2-channel analog output module, 0 ... 10 V / -10 ... +10 V DC,
16 Bit, configurable
2.1.1.1 View
A1+ A2+
MM
13 14
C
D
B
A
750-562
S1- S2-
S1+ S2+
+AO 2
+Sense AO 2
+AO 1
+Sense AO 1
-Sense AO 2-Sense AO 1
+24 V
0V
Data contacts
Function AO 1
Ground
Function AO 2
Error AO 1 Error AO 2
Ground
Fig. 2.1.1-1: View g056200e
2.1.1.2 General Description
The 750-562 analog output module generates output voltages in the range
from 0 ... 10 V or –10 ... +10 V for the field area.
The module has two short circuit-proof output channels and enables the direct
cabling of two 2-line actuators on the connections AO 1 and ground or AO2
and ground. The output of the signals occurs via AO 1 or AO 2.
In addition, the sense lines from 4-line actuators can be connected to the
connections Sense AO1 and +Sense AO1 or Sense AO2 and +SenseAO2.

750-562 [2 AO 0/+-10V DC 16 Bit] • 5
General Description
WAGO-I/O-SYSTEM 750
I/O Modules
The integrated drivers of the end levels are temperature-monitored.
Both output channels have a common ground potential.
The output signal is electrically isolated from the system level and will be
output with a resolution of 16 bits.
The readiness for operation and the disturbance-free I/O module
communication of the module is indicated with one green function LED per
channel.
An overload or a short circuit of an output is indicated by one red error LED
per channel.
The calibration data is stored individually for each operating mode and can be
scaled. For the process data output, a lower and an upper limit value can be
specified.
Furthermore, a variety of adjustment possibilities can be made, including
calibration data switching, numeric format and numeric display switching,
output behavior for I/O module timeout, (repeat) switch-on delay after
excessive temperature switch-off, etc. The individual output modules can be
arranged in any combination when configuring the fieldbus node. An
arrangement in blocks is not necessary.
The internal system supply is used for the power supply. The field power
supply is only forwarded to the downstream I/O modules.
The system voltage is monitored for undervoltage.
The output module receives the 0 V potential and the 24 V for downstream
I/O modules via an upstream I/O module or via a supply module. Power
connections are made automatically from module to module via the internal
power jumper contacts when the output modules are snapped onto the DIN
rail.
Warning
The maximum current that is permitted to flow through the power jumper
contacts is 10A. When configuring the system, ensure that this total current is
not exceeded. If this should happen, an additional supply module has to be
used.
The output module can be operated on all couplers/controllers (with the
exception of the economy variants 750-320, -323, -324, and -327) of the
WAGO-I/O-SYSTEM 750.

6 •750-562 [2 AO 0/+-10V DC 16 Bit]
Connecting Elements
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.3 Connecting Elements
Connection Name Function
1 A1+ Analog output 1
2 S1+
Positive sense connection for
analog output 1
3 S1-
Negative sense connection
for analog output 1
4 M Ground for analog outputs
5 A2+ Analog output 2
6 S2+
Positive sense connection for
analog output 2
7 S2-
Negative sense connection
for analog output 2
S1-
MM
750-562
S1+ S2+
A1+ A2+
+Sense AO 1
-Sense AO 1
M
+Sense AO 2
M
+AO 1 +AO 2
-Sense AO 2
S2-
Fig. 2.1.1-2: Connecting elements
g056203x 8 M Ground for analog outputs
2.1.1.4 Indicators
LED Channel Name Status Function
off I/O module timeout
A 1 RUN
green Internal data bus OK
off No group error
B 1 ERROR red Group error
off Internal data bus timeout
C 2 RUN
green Internal data bus OK
off No group error
13 14
C
D
B
A
D
C
B
A
Fig. 2.1.1-3: Indicators
g056002x
D 2 ERROR
red Group error
2.1.1.5 Operating Elements
The 750-562 analog output module has no operating elements.
The configuration and the parameters can be changed via the higher-level
controller or with the WAGO-I/O-CHECK configuration tool.

750-562 [2 AO 0/+-10V DC 16 Bit] • 7
Schematic Diagram
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.6 Schematic Diagram
750-562
1
2
3
4
5
6
7
8
A
D
0 ... 10 V
-10 ... +10 V
+AO 2
+Sense AO 2
+AO 1
+Sense AO 1
-Sense AO 2-Sense AO 1
AO
100 nF
10 nF
+24 V
0V
Ground Ground
Fig. 2.1.1-4: Schematic circuit diagram g056201e

8 •750-562 [2 AO 0/+-10V DC 16 Bit]
Process Image
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.7 Process Image
The analog output module 750-562 transmits 16 Bit data and 8 status bits per
channel.
The digitalized output value is transmitted in a data word (16 bits) as output
byte 0 (low) and output byte 1 (high) via the process image of the
coupler/controller.
This value is represented with a 16 bit resolution on bit B0 ... B15.
Some fieldbus systems can process the status information using by means of a
status byte.
However, processing of the status byte via the coupler/controller is optional,
which means that accessing or parsing the status information depends on the
fieldbus system.
2.1.1.7.1 Process Values
Data format 0 ... 65535
Manufacturer calibration, without user scaling
Numeric value
0 ... 10 V, [UA] = V hexadecimal decimal
0.0 0000 0
2.5 3FFF 16383
5.0 7FFF 32767
7.5 BFFF 49151
10.0 FFFF 65535
Data format 0 ... 65535
Manufacturer calibration, without user scaling
Numeric value
-10 ... +10 V, [UA] = V hexadecimal decimal
-10.0 0000 0
-5.0 3FFF 16383
0.0 7FFF 32767
+5.0 BFFF 49151
+10.0 FFFF 65535

750-562 [2 AO 0/+-10V DC 16 Bit] • 9
Process Image
WAGO-I/O-SYSTEM 750
I/O Modules
Data format –32768 ... +32767 (twos complement)
Manufacturer calibration, without user scaling
Numeric value
-10 ... +10 V, [UA] = V hexadecimal decimal
-10.0 8000 32768
-5.0 C000 49152
0.0 0000 0
+5.0 3FFF 16383
+10.0 7FFF 32767
Data format –32767 ... +32767 (leading sign/amount)
Manufacturer calibration, without user scaling
Numeric value
-10 ... +10 V, [UA] = V hexadecimal decimal
-10.0 FFFF 65535
-5.0 BFFF 49151
0.0 0 or 8000 0 or 32768
+5.0 3FFF 16383
+10.0 7FFF 32767
Numeric formats
Display -10 V
0 V +10 V 10 V
0 ...65535 0x0000
0 0x7FFF 32767
0x8000
32768 0xFFFF 65535
Twos complement 0x8000
-32768 0xFFFF -1
0x0001
0 0x7FFF 32767
Leading sign/amount 0xFFFF
-32767 0x8001 -1 0x0001 0x7FFF 32767
Setting of the upper and lower limit value depending on the numeric
format:
In the +/- numeric ranges, the limit values must be re-calculated to a positive
equivalent in the range from 0 ... 65535 (see table).
1. Example: twos complement

10 •750-562 [2 AO 0/+-10V DC 16 Bit]
Process Image
WAGO-I/O-SYSTEM 750
I/O Modules
Lower limit: -10 -> underrange limit value (register 41): 32758
Upper limit: +10 -> overrange limit value (register 42): 32778
2. Example: leading sign/amount
Lower limit: -10 -> underrange limit value (register 41): 32758
Upper limit: +10 -> overrange limit value (register 42): 32778
Setting the upper and lower limit value depending on a scaling:
3. Example: scaling
–10000 should correspond to –10 V, +10000 should correspond to +10 V.
This way, the scaling factor is: 32767 / 10000 = 3,2767.
3,2767 * 256 (increment with scaling) = 839.
839 is the amplification factor (gain, register 34). The offset (register 33)
remains 0.
If limit values should now be determined, these must be multiplied by 3.2767
and then re-calculated as in the first example to a numeric equivalent in the
range from 0 ... 65535.

750-562 [2 AO 0/+-10V DC 16 Bit] • 11
Function Description
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.8 Function Description
The conversion algorithm takes into account all calculation and evaluation
steps of the process data up to the analog output value. The individual steps
will be explained in this chapter. The figure below provides a graphic
overview of the stepwise processing of the input value.
PAOUT
DAC
Y 1
Y 2
Y 3
Y DAC
X IN
Overrange
Underrange
DATA-
Format
DAC-
Format
Casting
Step2
Step3
Step4
Step5
Step1
Manufacturer
calibration
User
calibration
User
scaling
Fig. 2.1.1-5: Conversion algorithm g056204e
2.1.1.8.1 Step 1 – Reading Out XIN Process Data
XIN is transmitted to the module with the process data communication. The 16
bit-wide value depends on the data format. The data format is determined by
bit 3 and bit 6 in register 32.
The following data formats are possible:
Bit width Description Minimum value Maximum value
16 bits Integer without leading sign 0 65535
16 bits Integer with leading sign -32768 +32767
15 bits Integer with leading sign bit -32767
(leading sign bit = 1)
+32767
(leading sign bit = 0)

12 •750-562 [2 AO 0/+-10V DC 16 Bit]
Function Description
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.8.2 Step 2 – Y1User Scaling
The value for Y1is generated with the user scaling if this is approved through
bit 0 of the register 32. The value XIN serves as input value for the user
scaling. For switched-off user scaling, the value XIN is transferred unchanged
to Y1.
The calculation occurs taking into account the configured data format and the
quality rating of the results is determined by an amplification factor and an
offset.
Configuration of the user scaling Description
Register 33 - OffsetAS Offset
Register 34 - GainAS Amplification factor
Calculation formula:
Y
1= XIN * GainAS / 256 + OffsetAS
The user scaling serves to adjust a desired process value range to the analog
output range specified through the calibration.
Thus, for example, with a module calibrated from -10V to +10V, the process
data value range with a leading sign of -10000 to +10000 can be mapped to
this output value range.
The calculation for the user scaling is carried out module-internally in the 32
bit numeric range.
With the use of the user scaling, the required precision of the resolution of the
analog adjusting range is changed, but not essentially limited. It is at the
discretion of the user whether the user scaling should be used or not. With a
GainAS = 256, the resolution remains uninfluenced in the 16-bit wide numeric
range.
The value of 1/256 permits amplifications in the range from 0.0039 to
255,9960 and thus offers the user scaling a very high variation range.

750-562 [2 AO 0/+-10V DC 16 Bit] • 13
Function Description
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.8.3 Step 3 – Y2Conversion of the Data Format
In this step, the value Y1determined through the configured data format is
converted into the DAC format, leading sign-less 16 bit integer. The context
of the conversion is described below:
Integer without
leading sign Integer with leading sign Integer with leading sign bit DAC format
0 -32768 undefined 0
1 -32767 -32767 1
... ... ... ...
32768 0 0 32768
... ... ... ...
65535 +32767 [phone]
2.1.1.8.4 Step 4 – Y3 Limit Control
The limit control monitors whether the value Y2in DAC format is in the
desired value range. This value range is defined by the parameter underrange
limit value (UNR) and the overrange limit value (OVR). Via bit 7 of the
register 32, it is also possible to activate a limit of the value Y3to this range.
During the determination of the calibration values for the manufacturer or user
calibration, no limit should be placed. You can achieve this by configuring the
overrange and underrange limit values to the maximum or minimum value
(65535 or 0) or by writing a 0 to bit 7 of register 32.
Configuration of the overrun limit
Register Name Description
41 Underrange limit value
42 Overrange limit value
If you would like to set the limits to defined analog output values, then these
must be determined either like the calibration values in step 5 or calculated
from these.

14 •750-562 [2 AO 0/+-10V DC 16 Bit]
Function Description
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.8.5 Step 5 – YDAC Calibration
This level serves to calibrate an analog output range to the process data value
range. AS parameter for the calibration, the module will only transmit the
basic value for the minimum value of the analog output range as offset. The
basic value for the maximum value serves to calculate a linear gain. The
degree of the gain is entered as amplification factor in register 37.
The amplification factor is calculated as follows:
Gain(A/H)K = 8192*((BasicValuemax – BasicValuemin) / 65535)
Two calibration sets are provided for the module. These are divided into the
manufacturer and user calibration. Only one calibration set is ever active. The
selection occurs via bit 1 of register 32.
Configuration of the manufacturer calibration
Register Name Description
17 OffsetHK Manufacturer calibration offset
18 GainHK Manufacturer calibration amplification factor
Configuration of the user calibration
Register Name Description
36 OffsetAK User calibration offset
37 GainAK User calibration amplification factor
Calculation formula:
Y
DAC = X3* Gain(A/H)K / 8192 + Offset(A/H)K
With the activation of the user calibration, the analog output range can be
selected freely taking into account the operating mode. In reality, the
minimum and maximum possible analog output values lie a little below or
above the named analog limits.

750-562 [2 AO 0/+-10V DC 16 Bit] • 15
Parameter Setting
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.9 Parameter Setting
2.1.1.9.1 Register Assignment
The following tables display the assignments and factory settings for the
individual registers. The factory settings are the same for both channels.
Register Function Memory Access Factory setting
17 Manufacturer calibration offset RAM R/W 0xXXXX
16 bit integer value with leading sign.
The manufacturer calibration is active if bit 1 is set in register 32.
YDAC = Y3 * R18 / 8192 + R17
Register Function Memory Access Factory setting
18 Manufacturer calibration gain RAM R/W 0xXXXX
16 bit fixed point value without leading sign.
The manufacturer calibration is active if bit 1 is set in register 32.
YDAC = Y3 * R18 / 8192 + R17
Register Function Memory Access Factory setting
19 Manufacturer substitution value RAM R/W MA: 0x0000
MB: 0x7FFF
16 bit in XIN coordinates, depending on the numeric format.
The substitute value is placed on the output of the module after a system reset or a watchdog
timer overflow (module has received no process data for 100 ms).
The substitute value is selected via register 32, bit 9.

16 •750-562 [2 AO 0/+-10V DC 16 Bit]
Parameter Setting
WAGO-I/O-SYSTEM 750
I/O Modules
Register Function Memory Access Factory setting
32 Mode setting EEPROM R/W 0x8006
Bit 0: activation of the user scaling
0: * User scaling (register 33 and register 34) is not active.
1: User scaling (register 33 and register 34) is active.
Bit 1: Activation of user calibration or manufacturer calibration
0: User calibration (register 36 and register 37) is active.
1: * Manufacturer calibration (register 18 and register 19) is active.
Bit 2: Behavior of the RUN LEDs on I/O module timeout
0: The RUN LED always lights up and the last output value is retained. On I/O module
timeout immediately after power up, 0 V is output. This is achieved by switching off
the scaling and calibration mechanisms and outputting values according to the
operating mode. This produces approximately 0 V with an imprecision in the lower
two-digit millivolt or microampere range.
1: * The RUN LED goes out after 100 ms inactivity on the bus and the lower register 32
bit 10/11 configured reaction is carried out.
Bit 3: Process data display (cf. table "Setting the numeric display," see below)
0: * Takeover of the process data in 2 complement display (that is, -1 = 0xFFFF)
1: Takeover of the process data in amount/leading sign display (that is, -1 = 0x8001)
Bit 4, 5: Operating mode
Bit 5 Bit 4 Mode Operating mode
0 0 * EMPL 0 ... 10 V
0 1 MB -10 V ... +10 V
1 0 MC Not permissible, causes malfunctions!
1 1 MD Not permissible, causes malfunctions!
Bit 6: Data format (cf. table "setting the numeric display," see below)
0: * Data format 0 ... +65535
1: Data format -32768 ... 0 ... +32767
Bit 7: Overrun limit
0: * In case of exceeding or undershooting the limit values in register 42 (OVR) and
register 41 (UNR), only the corresponding bits are set in the status byte.
1: In case of exceeding or undershooting the limit values in register 42 (OVR) and
register 41 (UNR), only the corresponding bits are set in the status byte and the output
value is kept to the limit value.
Bit 8: Switch-on behavior
0: * Ready for operation in the configured operating mode
1: Outputs are high-ohm

750-562 [2 AO 0/+-10V DC 16 Bit] • 17
Parameter Setting
WAGO-I/O-SYSTEM 750
I/O Modules
Register Function Memory Access Factory setting
Bit 9: Substitute value after I/O module timeout
0: * Manufacturer substitution value
1: User substitute value
Bits 10, 11: Behavior after I/O module timeout
The reaction depends on register 32, bit 2.
Bit 11 Bit 10 Behavior
0 0 * Output 0 V. This is achieved by switching off the scaling and
calibration mechanisms and outputting values according to the
operating mode, which produces approximately 0 V with an
imprecision in the lower two-digit millivolt or microampere
range.
0 1 Retain last value
1 0 Substitute value, as configured in register 32, bit 9
1 1 Put output in tri-state
Bit 12: Reserved
Bit 13 .. 15: Switch-on delay
The switch-on delay is the time that should pass after an ongoing overtemperature
error of the output driver until the error state is left. This way, for example, pulsing
can be avoided, which otherwise could be misinterpreted by the actuator as a strong
value change.
The values of the time fluctuate by ±10ms.
Bit 15 Bit 14 Bit 13 Switch-on delay
0 0 0 0 ms
0 0 1 100 ms
0 1 0 200 ms
0 1 1 300 ms
1 0 0 * 500 ms
1 0 1 750 ms
1 1 0 1 s
1 1 1 2 s
* Factory setting

18 •750-562 [2 AO 0/+-10V DC 16 Bit]
Parameter Setting
WAGO-I/O-SYSTEM 750
I/O Modules
Setting the numeric display (cf. register 32, bit 3, and bit 6)
Bit 6 Bit 3 Display -10 V
0 V
+10 V
10 V
0 X 0 ...65535 0x0000
0 0x7FFF 32767
0x8000
32768 0xFFFF 65535
1 0 Twos complement
0x8000
-32768 0xFFFF -1
0x0001
0 0x7FFF 32767
1 1
Leading
sign/amount
0xFFFF
-32767 0x8001 -1 0x0001 0x7FFF 32767
Register Function Memory Access Factory setting
33 User scaling offset RAM R/W 0x0000
16 bit integer value with leading sign. The user scaling is activated or deactivated via bit 0 in
register 32.
Y1= XIN * R34 / 256 + R33
Register Function Memory Access Factory setting
34 User scaling gain RAM R/W 0x0100
16 bit fixed point value without leading sign. The user scaling is activated or deactivated via
bit 0 in register 32.
Y1= XIN * R34 / 256 + R33
Register Function Memory Access Factory setting
35 User substitute value RAM R/W MA: 0x0000
MB: 0x7FFF
16 bit in XIN coordinates, depending on the numeric format.
The substitute value is placed on the output of the module after a system reset or an I/O
module timeout (module has received no process data for 100 ms).
The substitute value is selected via register 32, bit 9.
Register Function Memory Access Factory setting
36 User calibration offset RAM R/W 0xXXXX
16 bit integer value with leading sign.
The user calibration is active if bit 1 is not set in register 32.
YDAC = Y3 * R37 / 8192 + R36

750-562 [2 AO 0/+-10V DC 16 Bit] • 19
Parameter Setting
WAGO-I/O-SYSTEM 750
I/O Modules
Register Function Memory Access Factory setting
37 User calibration gain RAM R/W 0xXXXX
16 bit fixed point value without leading sign.
The user calibration is active if bit 1 is not set in register 32.
YDAC = Y3 * R37 / 8192 + R36
Register Function Memory Access Factory setting
41 Underrange limit (UNR) RAM R/W 0x0000
16 bit integer value without leading sign according to the DAC output format.
The value Y2is compared to this limit value and in case of undershooting, the
UNDERFLOW bit (UNR_x) is set in the status byte. With activated overrun limit (register
32, bit 7), the value Y3is limited to this limit value.
If values are written below the limit value, then these are declined by the module.
Register Function Memory Access Factory setting
42 Overrange limit (OVR) RAM R/W 0xFFFF
16 bit integer value without leading sign according to the DAC output format.
The value Y2is compared to this limit value and in case of overrunning, the OVERFLOW
bit (UNR_x) is set in the status byte. With activated overrun limit (register 32, bit 7), the
value Y3is limited to this limit value.
If values are written above the limit value, then these are declined by the module.

20 •750-562 [2 AO 0/+-10V DC 16 Bit]
Parameter Setting
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.9.2 Data Structures
2.1.1.9.2.1Configuration Concept
In addition to direct register access, the registers 32, 33 ... 37, and 41 ... 42 are
also accessible via addresses of the parameter channel. The relationship
between these registers and the addresses of the parameter channel are
described in Chapter 4.6.
Die Register 32 der beiden Kanäle sind neben dem direkten Registerzugriff
auch über Adressen des Parameterkanals erreichbar. (see chapter 2.1.1.9.4,
„Parameterization via GSD“) (übersetzen!!!)
2.1.1.9.2.2Switching the Operating Mode
The switching of the operating mode occurs via the bits 4 and 5 in register 32.
When writing register 32 for switching the operating mode of a channel, the
user must make sure that in addition to the desired operating mode, all other
configuration values of the register are set correctly, because various settings
are possible per operating mode and channel.
If the module detects an operating mode change, then the associated data is
loaded from the associated permanent bank into the register. This also applies
for the transition from an undefined into a defined operating mode.
2.1.1.9.2.3Register Access and EEPROM Banks
All registered on the parameter channel but for register 32 are really in the
RAM area. So that the contents are stored permanently, when writing to the
register via register communication or parameter channel, the content is
copied depending on the operating mode into the associated bank.
In the case of a configured undefined operating mode, this is refused and the
old operating mode is retained. If the access occurs via pure register
communication, no response is generated; for parameter channel
communication, the parameter channel error flag is set.
The principal behavior of the module when writing and reading the
configuration register is explained in the following descriptions.