JX3 system bus
Application-Oriented Manual
JX3 System
60882017
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Introduction
Item # 60882017
Revision 1.00
April 2017 / Printed in Germany
This document has been compiled by Jetter AG with due diligence, and based on the known state of the art.
In the case of modifications, further developments or enhancements to products shipped in the past, a revised document
will be supplied only if required by law, or deemed appropriate by Jetter AG. Jetter AG shall not be liable for errors in form
or content, or for missing updates, as well as for damages or disadvantages resulting from such failure.
The logos, brand names, and product names mentioned in this document are trademarks or registered trademarks of
Jetter AG, of associated companies or other title owners and must not be used without consent of the respective title
owner.
2
Jetter AG
JX3 system bus
Contents
Table of Contents
1
Engineering a JX3 station
1.1
2
5
Limitations to be taken into account when engineering a JX3 station .................................. 6
Limitations of the maximum number of modules ........................................................................... 9
Limitations of the modules' data exchange rates ......................................................................... 10
Limitation depending on the power consumption of the modules ................................................ 13
Register and I/O numbers with a JX3 station
19
Registers and module registers ................................................................................................... 20
Register and I/O numbers of JX3 modules connected to a JC-4xx ............................................. 22
Register and I/O numbers of JX3 modules connected to a JX3-BN-ETH ................................... 23
Register and I/O numbers of JX3 modules connected to a JX3-BN-ETH ................................... 25
Register and I/O numbers of JX3 modules from the JX3-BN-ETH perspective .......................... 27
3
JX3 system bus
29
Module array and module codes of connected modules ............................................................. 30
Dummy modules on the JX3 system bus .................................................................................... 32
JX3 system bus - Description of non-volatile registers ................................................................ 33
Register description - Modules detected on the JX3 system bus ................................................ 34
Register description - Error handling on the JX3 system bus ...................................................... 35
Register description - Timeout intervals on the JX3 system bus ................................................. 37
Register description - Versions of JX3 system bus drivers .......................................................... 38
Jetter AG
3
JX3 system bus
1
Engineering a JX3 station
Engineering a JX3 station
JX3 station
A JX3 station consists of a JX3-BN-xxx bus node, a JC-3xx controller or a
JC-4xx controller and JX3 peripheral modules connected to it.
Number of connectable
JX3 modules
The possible number of JX3 modules depends on the following parameters:
 Maximum number of JX3 modules
 Maximum data exchange rate
 Maximum power consumption
Tools
As a tool for determining the number of JX3 modules that can be connected
the Excel file jx3-sysbus_configurator_xxx_e is available.
JX3 system bus
configurator - Download
Jetter AG provide the JX3 system bus configurator on their homepage
http://www.jetter.de. You can find the JX3 system bus configurator for
download at Downloads - Expansion modules - JX3 modules - JX3 system
bus.
Contents
Topic
Page
Limitations to be taken into account when engineering a JX3 station ............ 6
Jetter AG
5
1 Engineering a JX3 station
1.1 Limitations to be taken into account when
engineering a JX3 station
Introduction
This chapter covers the following limitations of a JX3 station:
 Maximum number of JX3 modules
 Maximum data interchange rate
 Maximum power consumption
Take all three limitations into account when engineering a JX3 station and
match the JX3 peripheral modules considering all limiting factors. If you need
more JX3 peripheral modules for your plant, you can expand it by means of
JX3-BN-xxx.
JX3 system bus
configurator
The JX3 system bus configurator assists you in detecting limitations through
engineering a real JX3 station.
In this case, enter the amount of your JX3 modules into an Excel file. The
JX3 system bus configurator calculates the possibility of the above named
limitations.
There are two Excel sheets JX3 systembus data and JX3 systembus
power.
JX3 systembus data
Here, the maximum number of JX3 modules and maximum data interchange
rate is determined.
The following fields marked red convey the following meaning:
 Total number of modules

6
The maximum number of 16 JX3 modules per JX3 station has been
exceeded.
IN size of JX3 station
The aggregated input factor has been exceeded.
Jetter AG
JX3 system bus
Engineering a JX3 station
 OUT size of JX3 station
The aggregated output factor has been exceeded.
JX3 systembus power
Here, the maximum number of JX3 modules and maximum power
consumption is determined.
The following fields marked red convey the following meaning:
 Number of modules



Jetter AG
The maximum number of 8 JX3 modules connected to JC-3xx, JC-4xx,
JX3-BN-xxx, or JX3-PS1 has been exceeded.
Integrate the JX3-PS1 in your JX3 station.
JC-3xx/JX3-BN-ETH
The power consumption of the JX3 modules which are directly connected
to a JC-3xx, JC-4xx or a JX3-BN-ETH is too high.
Insert a JX3-PS1 into your JX3 station.
JX3-BN-CAN
The power consumption of the JX3 modules which are directly connected
to a JX3-BN-CAN is too high.
Insert a JX3-PS1 into your JX3 station.
JX3-PS1
The power consumption of the JX3 modules which are directly connected
to a power supply module JX3-PS1 is too high.
Insert a JX3-PS1 into your JX3 station.
7
1 Engineering a JX3 station
Contents
Topic
Page
Limitations of the maximum number of modules ............................................ 9
Limitations of the modules' data exchange rates .......................................... 10
Limitation depending on the power consumption of the modules................. 13
8
Jetter AG
JX3 system bus
Engineering a JX3 station
Limitations of the maximum number of modules
Limited maximum
number
The maximum number of JX3 peripheral modules per JX3 station is limited.
The following rule applies:
 Up to 16 JX3 peripheral modules can be integrated into a JX3 station.
 You can directly connect up to eight JX3 peripheral modules to a


Jetter
X19
S11
RUN
2
3
4
6
7
8
R
E D1 D2
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E D1 D2
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E D1 D2
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E D1 D2
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E D1 D2
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9 10 11 12
9 10 11 12
9 10 11 12
9 10 11 12
9 10 11 12
9 10 11 12
13 14 15 16
13 14 15 16
13 14 15 16
13 14 15 16
13 14 15 16
X21
X21
X21
X21
X21
X21
X21
R
Jetter
X21
R
E D1 D2
1
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8
R E D1 D2
1
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E D1 D2
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E D1 D2
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E D1 D2
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E D1 D2
1
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8
R
E D1 D2
1
2
3
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5
6
7
8
JX3-DI16
E D1 D2
1
5
JX3-DI16
R
13 14 15 16
JX3-DI16
8
JX3-DI16
4
7
JX3-DI16
3
JX3-DI16
2
6
9 10 11 12
JX3-DI16
E D1 D2
1
5
13 14 15 16
JX3-DI16
R
9 10 11 12
13 14 15 16
JX3-PS1
8
JX3-DI16
4
7
JX3-DI16
3
6
JX3-DI16
2
JX3-DI16
E D1 D2
1
5
JX3-DI16
R
JX3-DI16
E D1 D2
JX3-DI16
R
JX3-DI16
The following illustration shows a JX3 station with a JC-3xx controller and
16 JX3 peripheral modules. Downstream the eighth JX3 peripheral module a
JX3-PS1 power supply module has been inserted.
R
E D1 D2
1
2
3
5
6
7
4
8
9 10 11 12
9 10 11 12
9 10 11 12
9 10 11 12
9 10 11 12
9 10 11 12
9 10 11 12
9 10 11 12
13 14 15 16
13 14 15 16
13 14 15 16
13 14 15 16
13 14 15 16
13 14 15 16
13 14 15 16
13 14 15 16
X21
X21
X21
X21
X21
X21
X21
X21
LOAD
STOP
X14
BUS OUT
1
2
3
4
ETHERNET
5
6
SD-CARD
SER
POWER
X10
2
3
4
5
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2
3
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5
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1
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10
DC24V
1,2A
0V
3
4
1
7
0V
X61
2
5
6
1
8
X22
X15
X11
1
0V
X22
9
10
0V
X22
9
10
0V
X22
9
10
0V
X22
9
10
0V
X22
9
10
0V
X22
9
10
0V
0V
X22
X22
9
9
10
10
0V
X22
9
10
0V
X22
9
10
0V
X22
9
10
0V
X22
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10
0V
X22
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10
0V
X22
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16
0V
0V
0V
0V
0V
0V
0V
0V
13
POWER
JC-360
Fully equipped
JX3 station
JC-3xx/JC-4xx controller.
Downstream the eighth JX3 peripheral module you must insert a JX3-PS1
power supply module.
In addition, you can connect up to eight JX3 peripheral modules to a
JX3-PS1 power supply module.
13
13
13
13
13
13
0V
X22
9
10
11
12
13
X10
14
14
14
14
14
14
14
14
15
15
15
15
15
15
15
15
DC24V
0,5A
0V
16
16
16
16
16
16
16
16
0V
0V
0V
0V
0V
0V
0V
0V
DC24V
0V
Number
Jetter AG
Part
Description
1
End clamp for the DIN rail
For securing JX3 modules on the DIN rail
2
JC-3xx
Controller and power supply for the first
eight JX3 peripheral modules
3
JX3 peripheral modules
Eight JX3 peripheral modules
4
JX3-PS1
Power supply module for the next eight
JX3 peripheral modules
5
JX3 peripheral modules
Eight JX3 peripheral modules
6
Power supply lines DC 24 V
and 0 V
Logic voltage supply for all modules of
the JX3 station
9
1 Engineering a JX3 station
Limitations of the modules' data exchange rates
Introduction
There are two options for connecting remote peripheral modules: via
JX3-BN-CAN using the JX2 system bus protocol, or via JX3-BN-ETH using
the Ethernet system bus protocol. JX3 modules of a JX3 station exchange
data either with a JC-3xx/JC-4xx controller, or with bus node modules
JX3-BN-CAN and JX3-BN-ETH. The maximum number of input and output
data and of JX3 peripheral modules in a JX3 system is limited.
Evaluation of input and
output factors
The following table lists the factors for input and output data.
 Add the input factor of all modules used and calculate the aggregated input

factor.
Add the output factor of all modules used and calculate the aggregated
output factor.
 Compare the aggregated factor for inputs/outputs with the allowed
maximum factor:
where n <= 16.
Peripheral module
10
Input factor per module
Output factor per module
JX3-AI4
10
0
JX3-AO4
2
8
JX3-CNT
10
0
JX3-DI16
4
0
JX3-DIO16
4
2
JX3-DMS2
10
0
JX3-DO16
2
2
JX3-MIX1
16
6
JX3-MIX2
16
6
JX3-THI2-RTD
10
0
JX3-THI2-TC
10
0
Jetter AG
JX3 system bus
Devices not to be taken
into account
Engineering a JX3 station
The following devices are not taken into account when calculating the
aggregated input/output factor:




JX3 station - Maximum
configuration
Engineering steps
Controller JC-3xx/JC-4xx
Bus node JX3-BN-ETH
Bus node JX3-BN-CAN
Power supply module JX3-PS1
The table below lists the maximum allowed number of modules and the
aggregated factor of input data and output data.
Maximum number of
peripheral modules
Aggregated input factor
Aggregated output factor
16
88
88
To engineer a JX3 station, proceed as follows:
Step
Action
1
Do not exceed the maximum number of 16 modules per JX3 station.
2
Calculate the aggregated input factor by adding the input factor per
module.
Example:
2 JX3-DI16 and 8 JX3-AI4 modules are connected to a controller JC-3xx.
2 JX3-DI16 with input factor 4 makes 8; 8 JX3-AI4 with input factor
10 makes 80 => aggregated factor is 88.
3
Calculate the aggregated output factor by adding the output factor per
module.
Example:
2 JX3-DI16 and 8 JX3-AI4 modules are connected to a controller JC-3xx.
2 JX3-DI16 with input factor 0 makes 0; 8 JX3-AI4 with input factor
0 makes 0 => aggregated factor is 0.
4
If ...
... then ...
... the aggregated input factor
makes 88, ...
... the JX3 station is fully equipped.
... the aggregated output factor
makes 88, ...
... the JX3 station is fully equipped.
... the number of peripheral
modules is 16, ...
... the JX3 station is fully equipped.
If one of the three values has been exceeded, a new JX3 station must be
added. For this, apply a bus node, e.g. a JX3-BN-ETH.
Jetter AG
11
1 Engineering a JX3 station
Input factor per module
Aggregated factor
11
JX3-AO4
2
22
5
JX3-THI2-RTD
10
50
Aggregated input
factor
72
Output factor per
module
Aggregated factor
Quantity
Module
11
JX3-AO4
8
88
5
JX3-THI2-RTD
0
0
Aggregated output
factor
88
E D1 D2
R
E D1 D2
X19
S11
E D1 D2
R
E D1 D2
R
E D1 D2
R
E D1 D2
R
E D1 D2
R
E D1 D2
X51
X51
X51
X51
Jetter
X51
X51
R
X51
X51
X51
X51
X51
LOAD
1
1
1
1
1
1
1
1
1
1
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8
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
X52
SD-CARD
SER
X61
DC24V
1,2A
0V
X52
X52
X52
X52
X52
X52
X52
X52
5
6
7
8
0V
X52
9
9
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16
16
16
16
16
0V
0V
0V
0V
0V
X10
DC24V
0,5A
0V
13
13
13
13
13
13
14
14
14
14
14
14
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15
15
15
15
15
16
16
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16
16
16
0V
0V
0V
0V
0V
0V
X10
POWER
5
6
X52
X15
X11
X10
1
2
POWER
ETHERNET
X14
BUS OUT
STOP
POWER
R
Jetter
Jetter
RUN
R
JX3-PS1
R
JX3-AO4
E D1 D2
JX3-AO4
R
JX3-AO4
E D1 D2
JX3-AO4
R
JX3-AO4
E D1 D2
JX3-PS1
R
JX3-AO4
E D1 D2
JX3-AO4
R
JX3-AO4
You can engineer the JX3 station out of 11 JX3-AO4 and 5 JX3-THI2-RTD as
described below. One JX3 station will be sufficient.
Depending on the view on the power consumption unit, you must mount a
JX3-PS1 after a certain number of JX3 modules as is shown in the illustration.
JC-360
Conclusion of I/O factor
calculation
Module
JX3-AO4
Output factors in our
example
Quantity
JX3-AO4
Input factors in our
example
You want to connect 11 JX3-AO4 and 5 JX3-THI2-RTD to a controller JC-3xx.
JX3-AO4
Example
DC24V
0,5A
0V
DC24V
0V
Number
12
Part
Description
1
JC-3xx
Controller
2
JX3-AO4
Modules 1 to 5 supplied by JC-3xx (1)
3
JX3-PS1
Power supply module
4
JX3-AO4
Modules 6 to 11 supplied by JX3-PS1 (3)
5
JX3-PS1
Power supply module
6
JX3-THI2-RTD
Modules 12 to 16 supplied by JX3-PS1 (5)
Jetter AG
JX3 system bus
Engineering a JX3 station
Limitation depending on the power consumption of the modules
Introduction
JX3 modules of a JX3 station are supplied with logic voltage either by a
JC-3xx/JC-4xx controller, or a JX3-BN-xxx bus node, or a JX3-PS1 power
supply module. Each of these modules is able to supply up to 8 downstream
JX3 modules with logic voltage.
Certain JX3 modules, however, have a higher power consumption which may
reduce the number of JX3 modules that can be connected to one JX3 station.
Depending on the power consumption, you must equip the JX3 station with
additional power supply modules JX3-PS1.
Allowed power
consumption
The following table shows the allowed power consumption of JX3 modules
connected to the right (downstream) of the power supply module.
Power Supply Module
Devices not to be taken
into account
Power consumption P24 V
Power consumption P5 V
JC-3xx/JC-4xx
18 W
6W
JX3-BN-ETH
18 W
6W
JX3-BN-CAN
22 W
6W
JX3-PS1
24 W
6W
The following devices are not taken into account when calculating power
consumption:




Jetter AG
Controller JC-3xx/JC-4xx
Bus node JX3-BN-ETH
Bus node JX3-BN-CAN
Power supply module JX3-PS1
13
1 Engineering a JX3 station
Engineering steps
To engineer a JX3 station, proceed as follows:
Step
Action
1
Gather the following information from the technical data contained in the
manual of your JX3 module:

Current consumption from the logic voltage of the JX3 system bus:
I5 V

Current consumption from the additional voltage of the JX3 system
bus: I24 V
2
Calculate the power consumption of the JX3 modules:
3
Add the power consumption of JX3 modules included in the JX3 station.
Start with the first JX3 module connected to the JC-3xx/JC-4xx controller,
or to the JX3-BN-xxx bus node.
4
Check whether the allowed power consumption has been exceeded.
5
Example
If ...
... the allowed power consumption
P5 V has been reached, ...
... insert a JX3-PS1 power supply
module upstream the next
JX3 module.
... the allowed power consumption
P24V has been reached, ...
... insert a JX3-PS1 power supply
module upstream the next
JX3 module.
... 8 JX3 modules have been
connected ...
... insert a JX3-PS1 power supply
module upstream the next
JX3 module.
... 16 JX3 modules have been
connected ...
... the JX3 station is fully equipped.
You want to connect 11 JX3-AO4 and 5 JX3-THI2-RTD to a controller JC-3xx.
Check by taking the following steps how the JX3 station must be engineered
to keep power consumption from exceeding the permitted value.
Step
1
2
14
... then ...
Action
Determine the current consumption of the JX3 module JX3-AO4 given in
the technical data:

Current consumption from the logic voltage of the JX3 system bus:
70 mA

Current consumption from the additional voltage of the JX3 system
bus: 120 mA
Calculate the power consumption of an JX3-AO4:
Jetter AG
JX3 system bus
Engineering a JX3 station
Step
Action
3
Add the power consumption of n JX3-AO4:

For 11 JX3-AO4 modules, the aggregated power consumption is as
follows:
4
Check for permitted power consumption.
For JC-3xx:

For JX3-PS1:
The number of JX3-AO4 modules is limited by the power consumption at
24 V:
For JC-3xx:
For JX3-PS1:
Jetter AG
5
This module lets you directly connect up to 5 JX3-AO4 to a
JC-3xx/JC-4xx. Then, insert a JX3-PS1. Then, you can connect the
remaining 6 JX3-AO4 to this JX3-PS1.
6
Determine the current consumption of the JX3 module JX3-THI2-RTD
given in the technical data:

Current consumption from the logic voltage of the JX3 system bus:
210 mA

Current consumption from the additional voltage of the JX3 system
bus: 0 mA
7
Calculate the power consumption of an JX3-THI2-RTD:
8
Add the power consumption of n JX3-THI2-RTD:

For 5 JX3-THI2-RTD modules, the aggregated power consumption is as
follows:
15
1 Engineering a JX3 station
Step
Action
9
Check for permitted power consumption.
For JC-3xx/JC-4xx:
For JX3-PS1:
The number of JX3-THI2-RTD modules is limited by the power
consumption at 5 V:

For JC-3xx and JX3-PS1:
10
X19
X51
X51
X51
X51
E D1 D2
R
E D1 D2
R
E D1 D2
R
E D1 D2
R
E D1 D2
R
E D1 D2
R
Jetter
X51
X51
X51
X51
X51
X51
LOAD
1
BUS OUT
1
X14
ETHERNET
1
1
1
2
2
2
2
2
3
3
3
3
3
4
4
5
5
6
6
7
7
8
8
8
0V
0V
SD-CARD
1
2
3
6
SER
1
2
3
7
X10
1
2
3
4
DC24V
1,2A
0V
1
2
3
5
X61
1
2
3
X52
X15
X11
1
2
3
X52
0V
X52
4
5
6
7
8
0V
X52
4
4
5
5
6
6
7
7
8
8
0V
0V
X52
X52
4
5
6
7
8
0V
X52
4
5
6
7
8
0V
X52
4
5
6
7
8
0V
X52
4
5
6
7
8
0V
X52
4
5
6
7
8
0V
X52
9
9
9
9
9
9
9
9
9
9
9
10
10
10
10
10
10
10
10
10
10
10
11
11
11
11
11
12
12
12
12
12
13
13
13
13
13
14
14
14
14
14
15
15
15
15
15
16
16
16
16
16
0V
0V
0V
0V
0V
X10
DC24V
0,5A
0V
11
11
12
12
12
13
13
13
13
13
13
14
14
14
14
14
14
11
11
11
11
12
12
12
15
15
15
15
15
15
16
16
16
16
16
16
0V
0V
0V
0V
0V
0V
X10
POWER
STOP
POWER
R
Jetter
X51
POWER
RUN
R
JX3-PS1
E D1 D2
JX3-AO4
R
JX3-AO4
E D1 D2
JX3-AO4
R
JX3-AO4
E D1 D2
JX3-AO4
R
Jetter
S11
JX3-AO4
E D1 D2
JX3-PS1
R
JX3-AO4
E D1 D2
JX3-AO4
R
JX3-AO4
E D1 D2
JX3-AO4
R
JX3-AO4
Engineer the JX3 station in our example which is equipped with eleven
JX3-AO4 modules and five JX3-THI2-RTD modules as shown below:
JC-360
Engineering the
JX3 station - Option 1
Insert one JX3-PS1 per 5 JX3-THI2-RTD.
DC24V
0,5A
0V
DC24V
0V
Number
Engineering the
JX3 station - Option 2
Part
Description
1
JC-3xx
Controller
2
JX3-AO4
Modules 1 to 5 supplied by JC-3xx (1)
3
JX3-PS1
Power supply module
4
JX3-AO4
Modules 6 to 11 supplied by JX3-PS1 (3)
5
JX3-PS1
Power supply module
6
JX3-THI2-RTD
Modules 12 to 16 supplied by JX3-PS1 (5)
There is also the option of connecting two JX3-THI2-RTD directly to the first
JX3-PS1 and to connect the remaining three JX3-THI2-RTD to the second
JX3-PS1.
Regarding power consumption, you can even connect three JX3-THI2-RTD to
the first JX3-PS1.
16
Jetter AG
JX3 system bus
Engineering a JX3 station
X19
S11
E D1 D2
R
E D1 D2
R
E D1 D2
R
E D1 D2
R
E D1 D2
R
E D1 D2
X51
X51
X51
X51
X51
R
Jetter
X51
X51
X51
X51
X51
X51
LOAD
1
2
2
3
3
4
4
ETHERNET
5
5
6
6
7
7
X61
SER
SD-CARD
6
1
2
2
3
3
4
4
5
5
6
6
7
7
1
2
3
4
5
6
7
1
2
3
4
5
6
7
1
2
3
4
5
6
7
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
8
8
8
8
8
8
8
8
8
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
X52
9
9
10
DC24V
1,2A
0V
2
3
4
5
7
1
8
10
11
X10
2
3
4
5
6
7
1
0V
X52
X15
X11
1
11
X52
9
10
11
X52
9
10
11
X52
X52
9
9
10
10
11
11
X52
9
10
11
X52
9
10
11
X52
9
10
11
X52
9
10
11
12
12
12
12
12
12
12
12
12
12
13
13
13
13
13
13
13
13
13
13
14
14
14
14
14
15
15
15
15
15
16
16
16
16
16
0V
0V
0V
0V
0V
X52
9
10
11
12
13
X10
14
14
14
14
14
14
15
15
15
15
15
15
DC24V
0,5A
0V
16
16
16
16
16
16
0V
0V
0V
0V
0V
0V
X10
POWER
X14
BUS OUT
1
POWER
STOP
POWER
R
Jetter
Jetter
RUN
R
JX3-PS1
E D1 D2
JX3-AO4
R
JX3-AO4
E D1 D2
JX3-AO4
R
JX3-AO4
E D1 D2
JX3-AO4
R
JX3-PS1
E D1 D2
JX3-AO4
R
JX3-AO4
E D1 D2
JX3-AO4
R
JX3-AO4
E D1 D2
JX3-AO4
R
JX3-AO4
JC-360
Yet, the maximum number of eight modules which can be connected to a
JX3-PS1 will then be exceeded.
DC24V
0,5A
0V
DC24V
0V
Number
Jetter AG
Part
Description
1
JC-3xx
Controller
2
JX3-AO4
Modules 1 to 5 supplied by JC-3xx (1)
3
JX3-PS1
Power supply module
4
JX3-AO4
Modules 6 to 11 supplied by JX3-PS1 (3)
5
JX3-THI2-RTD
Modules 12 and 13 supplied by a JX3-PS1 (3)
6
JX3-PS1
Power supply module
7
JX3-THI2-RTD
Modules 14 to 16 supplied by JX3-PS1 (6)
17
JX3 system bus
2
Register and I/O numbers with a JX3 station
Register and I/O numbers with a JX3 station
Introduction
Controllers and modules produced by Jetter AG offer a host of functions which
can be accessed by the user via registers. A unique number is assigned to
each register and each digital input or output.
Applying a register
number
Register numbers are applied in the following cases:
 You want to read or write to a module register in the JetSym setup.
 You want to declare a module register a variable in the JetSym application
program.
 You want to declare a module register a tag in JetViewSoft
Applying an I/O number
I/O numbers are applied in the following cases:
 You want to read from a digital input in the JetSym setup.
 You want to read or write to a digital output in the JetSym setup.
 You want to declare a digital input or output a variable in the JetSym

application program.
You want to declare a digital input or output a tag in JetViewSoft.
Contents
Topic
Page
Registers and module registers .................................................................... 20
Register and I/O numbers of JX3 modules connected to a JC-4xx ............. 22
Register and I/O numbers of JX3 modules connected to a JX3-BN-ETH .... 23
Register and I/O numbers of JX3 modules connected to a JX3-BN-ETH .... 25
Register and I/O numbers of JX3 modules from the JX3-BN-ETH perspective27
Jetter AG
19
2 Register and I/O numbers with a JX3 station
Registers and module registers
Module registers Definition
Module registers are the data interface of a JX3 module. Module registers let
you read process, configuration and diagnostics data from the JX3 module, or
write such data to it.
 The module register number within a module is unique.
 This unique register number lets you access a specific module register
within the system.
Registers - Definition
There are several ways to access registers directly:
 From an application program
 From the JetSym setup pane
 From a visualization application
The register number within the system is unique.
Definition - Global Node
Number
The Global Node Number (GNN) is an ID number to identify Jetter controllers
(e.g. controllers, bus nodes) within an Ethernet network.
 The GNN within a network has to be unambiguous for each Jetter device.
 The JetSym Hardware Manager automatically assigns the GNN during
configuration.
The value range of the GNN within a project is 000 ... 199.

 The controller has always got GNN 000.
Example: Module
registers
Registers - Example
Module register 9 lets you access the OS version of a JX3-AI4 module:
A JX3-AI4 module is connected to a controller JC-4xx. The module number of
this module is 2.
1
1
0
0
0
2
z
z
2
Number
20
z
z
3
Element
Description
1
Register number
Can be used to directly access the register
2
Register prefix
10002: Assigned to the first JX3 module
connected to a JC-4xx controller
3
Module register
number
zzzz = 0009: OS version of the JX3-AI4
Jetter AG
JX3 system bus
Register and I/O numbers with a JX3 station
In the setup pane of JetSym you can directly read out the operating system
version 1.2.0.0 from register number 100020009.
Example: Registers on
the Ethernet system bus
A JX3-AI4 module is connected to a bus node JX3-BN-ETH. The module
number of the JX3 module is 2. The bus node has got the ID (GNN) 001.
Number
Element
Description
1
Register number
Can be used to directly access the register
2
Bus node ID, GNN
001: ID of the first JX3-BN-ETH
3
Module number
02: The first JX3-I/O module connected to the
JX3-BN-ETH
4
Register prefix
100102
5
Module register number
0009: OS version of the JX3-AI4
In the setup pane of JetSym you can directly read out the operating system
version 1.4.0.0 from register number 1001020009.
Jetter AG
21
2 Register and I/O numbers with a JX3 station
Register and I/O numbers of JX3 modules connected to a JC-4xx
Module numbers in a
JX3 station
To determine I/O module numbers within a JX3 station, proceed as follows:
 Count the module numbers left-to-right, starting with 1.
 Leave out the power supply module JX3-PS1.
Register numbers for JX3 modules connected to a JC-4xx consist of the
following elements:
1
0
0
x
x
z
Element
xx
Value range
02 ... 17
Module register number
0
0
0
0000 ... 9999
0
x
Element
x
z
z
Meaning
Value range
xx
Module number of the module within the JX3
station
02 ... 17
zz
Module-specific I/O number
1 ... 16
8
X51
I1+
E
D2
1
2
3
4
5
6
7
8
9 10 11 12
X21
R
E
D2
1
2
3
4
5
6
7
8
9 10 11 12
13 14 15 16
X21
1
1
2
2
0V
3
SHLD
R
E
D2
1
2
3
4
5
6
7
8
9 10 11 12
13 14 15 16
R
E
D2
1
2
3
4
5
6
7
8
9 10 11 12
13 14 15 16
X21
X21
R
D2
E
1
2
3
4
5
6
7
8
9 10 11 12
13 14 15 16
X21
R
E
1
2
3
4
5
6
7
D2
8
9 10 11 12
R
Jetter
13 14 15 16
R
E
1
2
3
5
6
7
D2
4
8
9 10 11 12
13 14 15 16
X21
X21
1
1
1
1
1
2
2
2
2
2
2
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
U2+
5
5
5
5
5
5
5
5
I2+
6
6
6
6
6
6
6
6
0V
7
7
7
7
7
7
7
7
0V
8
8
8
8
8
8
8
SHLD
0V
0V
0V
0V
0V
0V
0V
X32
X32
X32
X32
X32
X32
8
I3+
9
9
9
9
9
9
9
0V
10
10
10
0V
11
11
SHLD
12
U4+
9
10
10
10
10
10
11
11
11
11
11
12
12
12
12
12
12
13
13
13
13
13
13
13
I4+
14
14
14
14
14
14
14
0V
15
15
15
15
15
15
15
0V
16
16
16
16
16
16
16
SHLD
0V
0V
0V
0V
0V
0V
0V
2
Module
3
4
5
6
Module number
7
8
0V
X32
X32
11
12
13
X10
POWER
1
0V
X52
Number
X21
R
13 14 15 16
JX3-DIO16
4
JX3-PS1
3
7
JX3-DIO16
D2
2
6
9 10 11 12
JX3-DIO16
E
1
5
JX3-DIO16
R
JX3-DIO16
E D1 D2
JX3-DIO16
R
JX3-DIO16
JX3-AO4
Several JX3 modules are connected to a JC-4xx controller.
13 14 15 16
22
z
I/O numbers for JX3 modules connected to a JC-4xx consist of the following
elements:
1
Example
z
Module number of the module within the JX3
station
zzzz
I/O numbers for
JX3 modules
z
Meaning
JX3-DIO16
Register numbers for
JX3 modules
DC24V
0,5A
0V
9
Register
14
15
16
0V
10
I/O
1
JC-4xx
1
2
JX3-AO4
2
10002zzzz
1000002zz
3
JX3-PS1
-
-
-
4
JX3-DIO16
10
10010zzzz
1000010zz
Refer to documentation on JC-4xx
Jetter AG
JX3 system bus
Register and I/O numbers with a JX3 station
Register and I/O numbers of JX3 modules connected to a JX3-BN-ETH
Global Node Numbers on
the Jetter Ethernet
system bus of a
JX3-BN-ETH
JetSym Hardware Manager assigns a Global Node Number to the bus node
JX3-BN-ETH on the Jetter Ethernet system bus.
Register numbers for
JX3 modules
The register number for JX3 modules at the Ethernet bus node consists of the
following elements:
1
n
x
x
z
z
z
z
Meaning
Value range
nnn
Global Node Number of the JX3-BN-ETH on the
Ethernet system bus
001 ... 199
Module number of the module within the JX3
station
zzzz
02 ... 17
Module register number
0000 ... 9999
The I/O number for JX3 modules connected to an Ethernet bus node consists
of the following elements:
1
Jetter AG
n
Element
xx
I/O numbers for JX3
modules
n
n
n
n
0
1
x
x
z
z
Element
Meaning
Value range
nnn
Global Node Number of the JX3-BN-ETH on the
Ethernet system bus
001 ... 199
xx
Module number of the module within the JX3
station
02 ... 17
zz
Module-specific I/O number
1 ... 16
23
2 Register and I/O numbers with a JX3 station
D2
Jetter
X51
D2
2
3
4
6
7
8
1
X14
0V
R
E
1
2
3
4
5
6
7
D2
8
9 10 11 12
R
E
D2
Jetter
13 14 15 16
R
E
D2
1
2
3
5
6
7
4
8
9 10 11 12
13 14 15 16
X21
X21
1
1
X14
2
3
3
3
SHLD
4
4
4
0V
SHLD
X52
I3+
0V
0V
SHLD
U4+
0V
SHLD
Module
POWER
0V
7
7
8
8
0V
0V
X32
X15
I4+
5
6
X10
DC24V
1,2A
0V
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
0V
0V
Module
number
GNN
6
7
8
0V
X32
9
2
5
ETHERNET
0V
5
6
X15
X32
9
10
11
12
13
14
POWER
I2+
ETHERNET
2
0V
U2+
24
E
1
5
9 10 11 12
X21
I1+
Number
R
13 14 15 16
JX3-DIO16
E
JX3-BN-ETH
R
JX3-DIO16
E D1 D2
JX3-DIO16
R
JX3-BN-ETH
Two bus nodes JX3-BN-ETH are connected to a JC-4xx controller.
JX3-AO4
Example
Register
X10
DC24V
1,2A
0V
15
16
0V
I/O
1
JC-4xx
1
-
2
JX3-AO4
2
-
10002zzzz
3
JX3-BN-ETH
-
1
Refer to JX3-BN-ETH manual
4
JX3-DIO16
2
-
100102zzzz
10010102zz
5
JX3-DIO16
3
-
100103zzzz
10010103zz
6
JX3-BN-ETH
-
2
7
JX3-DIO16
2
-
Refer to JC-4xx manual
1000002zz
Refer to JX3-BN-ETH manual
100202zzzz
10020102zz
Jetter AG
JX3 system bus
Register and I/O numbers with a JX3 station
Register and I/O numbers of JX3 modules connected to a JX3-BN-ETH
Global Node Numbers of
a JX3-BN-ETH on the
Jetter Ethernet system
bus
The JetSym Hardware Manager assigns Global Node Numbers to the bus
node JX3-BN-ETH on the Jetter Ethernet system bus.
Register numbers for
JX3 modules
The register number for JX3 modules at the Ethernet bus node consists of the
following elements:
1
n
n
n
Element
nnn
z
z
z
z
Description
Value range
001 ... 199
Module number of the module within the JX3
station
zzzz
02 ... 17
Module register number
0000 ... 9999
The I/O number for JX3 modules connected to an Ethernet bus node consists
of the following elements:
1
n
Element
nnn
Jetter AG
x
Global Node Number of a JX3-BN-ETH on the
Ethernet system bus
xx
I/O numbers for JX3
modules
x
n
n
0
1
x
x
Description
Global Node Number of a JX3-BN-ETH on the
Ethernet system bus
z
z
Value range
001 ... 199
xx
Module number of the module within the JX3
station
02 ... 17
zz
Module-specific I/O number
1 ... 16
25
2 Register and I/O numbers with a JX3 station
Example
Two bus nodes JX3-BN-ETH are connected to a JC-940MC controller.
1
Jetter
D2
2
3
4
6
7
8
X21
E
T
H
1
ETHERNET
X14
X14
POWER
X10
DC24V
1,2A
0V
E
D2
1
2
3
4
5
6
7
8
R
E
D2
9 10 11 12
Jetter
13 14 15 16
R
1
2
3
E
D2
1
2
3
4
5
6
7
8
9 10 11 12
13 14 15 16
X21
1
2
3
X21
1
X14
2
3
4
4
4
5
5
5
6
6
7
7
8
8
0V
0V
X32
X15
R
JX3-DIO16
E
1
5
9 10 11 12
JC-360
R
13 14 15 16
ETHERNET
Jetter
6
7
8
0V
X32
X15
X32
9
9
9
10
10
10
11
11
12
12
13
13
14
14
15
15
16
16
0V
0V
11
12
13
14
POWER
D2
JX3-DIO16
R E
JX3-DIO16
JC-360
JC-940MC
X10
DC24V
1,2A
0V
15
16
0V
Err D1 RUN
STOP
S11
RUN
S10
LOAD
RESET
Number
26
Module
Module
number
GNN
Register
I/O
1
JC-940MC
1
0
Refer to documentation on
JC-940MC
2
JX3-BN-ETH
-
1
Refer to documentation on
JX3-BN-ETH
3
JX3-DIO16
2
4
JX3-DIO16
3
-
5
JX3-BN-ETH
-
2
6
JX3-DIO16
2
-
100102zzzz
10010102zz
100103zzzz
10010103zz
Refer to documentation on
JX3-BN-ETH
100202zzzz
10020102zz
Jetter AG
JX3 system bus
Register and I/O numbers with a JX3 station
Register and I/O numbers of JX3 modules from the JX3-BN-ETH
perspective
Application example
Explicit data transfer using NetCopy().
Module numbers in a
JX3 station
To determine module numbers in a JX3 station, proceed as follows:
Register numbers for
JX3 modules
From the perspective of the Ethernet bus node, the register number consists
of the following elements:
 Count the JX3-I/O modules left-to-right, starting with 1.
 Leave out the power supply module JX3-PS1.
1
0
0
x
x
Element
xx
z
z
Description
Value range
02 ... 17
Module register number
0000 ... 9999
From the perspective of the Ethernet bus node, the I/O number consists of the
following elements:
1
0
0
0
0
Element
x
x
z
z
Description
Value range
xx
Number of the module within the JX3 station
02 ... 17
zz
Module-specific I/O number
1 ... 16
4
7
8
X51
I1+
POWER
X10
Number
3
4
6
7
8
D2
X21
1
R
E
1
2
3
4
5
6
7
8
D2
9 10 11 12
13 14 15 16
X21
1
R
E
1
2
3
4
5
6
7
8
D2
9 10 11 12
13 14 15 16
R
E
1
2
3
4
5
6
7
8
D2
9 10 11 12
13 14 15 16
X21
1
X21
R
E
1
2
3
4
5
6
7
8
D2
9 10 11 12
13 14 15 16
X21
1
1
R
E
1
2
3
4
5
6
7
8
D2
9 10 11 12
R
Jetter
13 14 15 16
R
E
1
2
3
4
5
6
7
8
D2
9 10 11 12
13 14 15 16
X21
X21
1
1
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
SHLD
4
4
4
4
4
4
4
4
U2+
5
5
5
5
5
5
5
5
I2+
6
6
6
6
6
6
6
6
0V
0V
2
9 10 11 12
0V
SHLD
DC24V
1,0A
1
E
1
5
5
0V
0V
X15
X21
R
13 14 15 16
X52
7
8
0V
X32
7
8
0V
X32
7
8
0V
X32
7
7
8
7
8
0V
8
0V
X32
X32
0V
X32
7
7
8
8
0V
0V
X32
X32
I3+
9
9
9
9
9
9
9
9
0V
10
10
10
10
10
10
10
10
0V
11
11
11
11
11
11
11
11
SHLD
12
12
12
12
12
12
12
12
U4+
13
13
13
13
13
13
13
13
I4+
14
14
14
14
14
14
14
0V
15
15
15
15
15
15
15
0V
16
16
16
16
16
16
16
SHLD
0V
0V
0V
0V
0V
0V
0V
Module
Module number
X10
POWER
ETHERNET
X14
D2
4
JX3-DIO16
3
6
JX3-PS1
2
9 10 11 12
JX3-DIO16
E
1
5
JX3-DIO16
R
13 14 15 16
JX3-DIO16
E D1 D2
JX3-DIO16
R
Jetter
JX3-DIO16
D2
3
3
JX3-DIO16
E
JX3-AO4
JX3-BN-ETH
R
2
JX3-DIO16
1
Example of a JX3 station
at a JX3-BN-ETH
Jetter AG
z
Number of the module within the JX3 station
zzzz
I/O numbers for
JX3-modules
z
DC24V
0,5A
0V
14
15
16
0V
Register
I/O
1
JX3-BN-ETH
1
Refer to JX3-BN-ETH manual
2
JX3-AO4
2
10002zzzz
1000002zz
3
JX3-DIO16
3 ff.
10003zzzz
1000003zz
4
JX3-PS1
-
-
-
5
JX3-DIO16
10
10010zzzz
1000010zz
27
JX3 system bus
3
JX3 system bus
JX3 system bus
Introduction
JX3 modules are directly connected to the JX3 system bus of the controllers
JC-3xx, JC-4xx, or bus node JX3-BN-xxx. The JX3 system bus supports
different modules. Access to these modules is completely transparent.
Configuration
The JX3 system bus needs not be configured. The controllers JC-3xx, JC-4xx,
and the bus node JX3-BN-xxx are able to automatically detect and
commission connected modules.
Connectable modules
 JX3 modules except for JX3-COM-xxxx modules
Contents
Topic
Page
Module array and module codes of connected modules .............................. 30
Dummy modules on the JX3 system bus ..................................................... 32
JX3 system bus - Description of non-volatile registers................................. 33
Register description - Modules detected on the JX3 system bus ................ 34
Register description - Error handling on the JX3 system bus ...................... 35
Register description - Timeout intervals on the JX3 system bus .................. 37
Register description - Versions of JX3 system bus drivers .......................... 38
Jetter AG
29
3 JX3 system bus
Module array and module codes of connected modules
Module array
A unique module code is assigned to each module that is connected to the
JX3 system bus. The controllers JC-3xx, JC-4xx, and the bus node
JX3-BN-xxx enter all modules detected during initialization into the module
array.
Modules are entered into the module array in the following order:
 As connected
 JX3-PS1 modules are not entered into the module array.
Registers - Overview
Reading the module
array
Register
R 100002015
Index to module array
R 100002016
Module array
R 100002015 = 0: Number of modules
R 100002015 = 1: Module code of the first module
etc.
The module array is accessed indirectly.
Step
30
Description
Action
1
Enter the number of the module in the module array into R 100002015
Index to Module Array.
2
Read out the module code from R 100002016 Module Array.
Jetter AG
JX3 system bus
Module codes of
JX3 modules
Module codes - Dummy
modules
JX3 system bus
Module code
Description
300
JX3-DI16
16 digital inputs
301
JX3-DIO16
16 digital inputs and 8 digital outputs
302
JX3-DO16
16 digital outputs
303
JX3-AI4
4 analog inputs
304
JX3-AO4
4 analog outputs
305
JX3-MIX1
Multi-purpose module
307
JX3-THI2-RTD
2 inputs for resistance thermometers
308
JX3-CNT
Universal counter module
310
JX3-MIX2
Multi-purpose module
312
JX3-THI2-TC
2 inputs for thermocouples
316
JX3-DMS2
2 inputs for strain gages
340
JX3-AI4-EI
4 analog inputs with galvanic isolation
341
JX3-THI2-RTD-EI
2 inputs for resistance thermometers
with galvanic isolation
342
JX3-THI2-TC-EI
2 inputs for thermocouples with
galvanic isolation
Module code
251
Jetter AG
Module
Module
I/O dummy module
Description
-
31
3 JX3 system bus
Dummy modules on the JX3 system bus
Dummy modules
A dummy module is a module on the JX3 system bus that actually does not
exist. When assigning I/O module numbers, the controller JC-3xx, JC-4xx, and
the bus node JX3-BN-xxx treat dummy modules as if they were existing
modules.
Dummy modules allow the user to insert a nonexistent module between
existing modules.
Registers - Overview
The value contained in the register for dummy module configuration is
non-volatile. Any changes become effective only after the module has been
re-initialized.
Register
R 100002023
Allowed dummy
modules
Configuring dummy
modules
Description
I/O dummy modules
 JX3 modules
Step
Action
1
Modify the dummy module configuration within the controller via
R 100002023.
2
Switch the controller off.
3
Then, switch the controller on.
Result:
The controller or bus node has initialized the JX3 system bus taking into
account the configured dummy modules. Information from the dummy
modules can be retrieved via module array.
R 100002023
Dummy modules
Module register properties
Values
1 ... 65535 (bit-coded)
Bit 0 -> module 2
Bit 1 -> module 3
...
Bit 15 -> module 17
Bit = 1: Module may exist
Bit = 0: Dummy module
Value after reset
32
65535 (all modules may exist)
Jetter AG
JX3 system bus
JX3 system bus
JX3 system bus - Description of non-volatile registers
Introduction
Non-volatile registers let you configure the JX3 system bus. Any changes to a
non-volatile register will not take effect before reboot.
R 100002023
I/O dummy modules
Each bit in this register represents an I/O module on the JX3 system bus.
Meaning of the individual bits
Bit 0
Bit 1
etc.
Configuration of I/O module 2
0=
I/O module is a dummy module
1=
I/O module is not a dummy module
Configuration of I/O module 3
0=
I/O module is a dummy module
1=
I/O module is not a dummy module
Configuration of I/O module 4 ... 17
0=
I/O module is a dummy module
1=
I/O module is not a dummy module
Module register properties
R 100002034
Value after reset
Non-volatile; factory setting: 65535
Takes effect
Next time when the controller is launched
Number of retries
This register lets you set the number of retries in accessing the JX3 modules.
Before you make changes to this value consult the hotline at Jetter AG.
Module register properties
Jetter AG
Values
1 ... 5
Value after reset
Non-volatile; factory setting: 1
Takes effect
Next time when the controller is launched
33
3 JX3 system bus
Register description - Modules detected on the JX3 system bus
R 100002013
Number of detected I/O modules
The controllers JC-3xx, JC-4xx, and the bus node JX3-BN-xxx enter the sum
of the following I/O modules into this register:
 JX3-I/O modules
 I/O dummy modules
Values
0 ... 16
Number of I/O modules
Module register properties
R 100002015
Type of access
Read only
Value after reset
Amount of connected JX3-I/O modules
Index to module array
This index lets you select the module array entry contained in R 100002016.
Values
R 100002016
0
R 100002016 contains the number of modules connected to
the JX3 system bus.
1 ... 16
R 100002016 contains the module code that has been
entered into the module array by the controller.
Module array
This register value reflects the module code that has been selected in
R 100002015 Index to module array.
Module register properties
34
Type of access
Read only
Value after reset
Amount of connected JX3-I/O modules
Jetter AG
JX3 system bus
JX3 system bus
Register description - Error handling on the JX3 system bus
R 100000000
Bus status
The controllers JC-3xx, JC-4xx, and the bus node JX3-BN-xxx enter into this
register the status of the JX3 system bus.
Meaning of the individual bits
Bit 15
Bus status
1=
Data exchange takes place via JX3 system bus.
Module register properties
R 100002008
Type of access
Read access
Value after reset
Depending on the initialization state
JX3 system bus - Error registers
If an error on the JX3 system bus occurs, the controllers JC-3xx, JC-4xx, and
the bus node JX3-BN-xxx enter its cause into this register.
Meaning of the individual bits
Bit 3
Error
1=
Bit 16
At least one JX3 module has caused an error.
Fatal error
1=
A fatal, non-recoverable error has occurred on the JX3 system
bus. Data exchange has been terminated.
Module register properties
R 100002011
Type of access
Only 0 can be entered.
Value after reset
Depending on the initialization state
Number of the I/O module where the error has occurred
If during communication with an I/O module an error occurs, the controller
enters the number of the I/O module into this register. An error might occur in
the following cases:
 Read/write access to process data of JX3 modules
 Read/write access to module registers of a JX3 module
Values
2 ... 17
Jetter AG
Number of the JX3 I/O module
35
3 JX3 system bus
Module register properties
Type of access
R 100002111
Only 0 can be entered.
Register number of the module where the error has occurred
If during communication with an I/O module an error occurs, the controller
enters the number of the module register into this register. An error might
occur in the following cases:
 Read/write access to module registers of a JX3 module
Values
-1 ... 9999
Module register number of the JX3 module
Module register properties
36
Type of access
Only 0 can be entered.
Value after reset
-1
Jetter AG
JX3 system bus
JX3 system bus
Register description - Timeout intervals on the JX3 system bus
R 100002764
Timeout interval for register access to JX3 modules
The response to register access to JX3 modules must be within the configured
timeout interval:
 JX3 modules
Values
1 ... 255 [ms]
Timeout in milliseconds
Module register properties
Value after reset
Jetter AG
15 [ms]
37
3 JX3 system bus
Register description - Versions of JX3 system bus drivers
Introduction
Apart from information on the OS version of the controllers JC-3xx, JC-4xx,
and the bus node JX3-BN-xxx there is also additional version information for
identifying the JX3 system bus driver.
R 100002000
Version of the JX3 system bus interface
Module register properties
R 100002072
Type of access
Read only
Data type
IP format
Version of the JX3 system bus driver
Module register properties
38
Type of access
Read only
Data type
IP format
Jetter AG
Jetter AG
Graeterstrasse 2
71642 Ludwigsburg | Germany
Phone +49 7141 2550-0
Fax +49 7141 2550-425
[email protected]
www.jetter.de
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