VersaMax PROFIBUS NIU User manual

VersaMax* PROFIBUS Network Interface Unit
December 2016 GFK-1552L
1
Product Description
The PROFIBUS Network Interface Unit (NIU) is a PROFIBUS slave
module that acts as controller for a set of I/O modules. Power for module
operation is provided by a power supply that installs directly on the NIU.
Profibus NIU
power supply
Specifications
PROFIBUS network address
1 to 125
PROFIBUS network data rate
9.6Kbaud to 12Mbaud, auto-detected
I/O data
375 bytes maximum. Up to 244 bytes of inputs
or 244 bytes of outputs.
User diagnostic data
5 bytes maximum
Indicators (5)
Power LED indicates power
OK LED indicates health of the NIU
Fault LED indicates presence of faults
Network LED indicates health of PROFIBUS
network
Force LED(not used)
Number of I/O modules
64 I/O modules per NIU (Up to 8 Racks with a
maximum of 8 I/O modules per rack.)
Power Consumption
+5V@250mA, +3.3V@10mA
New Feature in Version 2.21 and later
This version of the PROFIBUS NIU can be used with all VersaMax
High-density Analog modules.
Input modules: IC200ALG261, IC200ALG262, IC200ALG263,
IC200ALG264
Output modules: IC200ALG325, IC200ALG326, IC200ALG327,
IC200ALG328
Revision:
MH
Firmware version:
2.22
GSD File version
GEF_086A.GSD Version 1.10
Firmware upgrades:
44A748011-G06
Compatibility
•To be used in an expansion rack, analog modules IC200ALG320,
321, 322, and 432 must be revision B or later. Analog modules
IC200ALG430 and 431 that are used in expansion racks must be
revision C or later.
•This PROFIBUS NIU is compatible with the AS-i Network Master
module.
•Functional operation of discrete outputs has changed from
previous releases. When upgrading firmware in an existing
module, it may be necessary to alter the application program to
accommodate this difference. Refer to the section Output
Defaults for more information.
Upgrading Previous Firmware Versions
This firmware release replaces all previous versions. The version 2.22
firmware is backward-compatible with all previous module versions of
the PROFIBUS NIU. An upgrade is available at [email protected]
and can also be ordered on disk (order number 44A748012-G05). All
firmware upgrades require cable IC200CBL002, which connects the
module to the personal computer used to perform the upgrade.
Output Default/Hold Last State Operation
Warning
Failure to account for the DEFAULT/HOLD LAST STATE function
of outputs could cause an unexpected equipment operation
possibly resulting in personal injury or property damage.
For an Output Module Configured to Default
Outputs go to their configured default state when communication
is lost with the PROFIBUS master. Outputs go to zero when the
PROFIBUS master transitions from “Operate” to “Clear” mode.
With a PLC PROFIBUS master, the transition from “Operate” to
“Clear” mode occurs when the PLC CPU transitions from “Run” to
“Stop” mode.
Output Module Configured to Hold Last State
Outputs hold their last state when communication is lost with the
PROFIBUS master. Outputs go to zero when the PROFIBUS
master transitions from “Operate” to “Clear” mode. With a PLC
PROFIBUS master, the transition from “Operate” to “Clear” mode
occurs when the PLC CPU transitions from “Run” to “Stop” mode
Operating Notes/Restrictions
•The PROFIBUS NIU is limited in the amount of configuration it
can accept for I/O modules on it station. The maximum number
of configuration identifiers allowed is 64. It is possible to exceed
that maximum when using expansion racks. It is important to
calculate the number of configuration identifiers required to
configure a PROFIBUS NIU system to determine if the system is
within this limit. This can be done by summing the configuration
identifiers for each I/O module in the station as listed in the
PROFIBUS NIU User Manual. If the configuration size is
exceeded, the PROFIBUS NIU will flash an error code 0x41.
•When performing a firmware upgrade on an intelligent I/O
module in the NIU station, the controller should be put into stop
mode, or the network cable should be removed from the NIU.
•The main power supply for an NIU station and any booster power
supplies that are used should be power-cycled together. They
should be supplied by the same power source.
•If the PROFIBUS Watchdog timer expires on a PROFIBUS NIU
that is reporting extended diagnostic information to a PROFIBUS
master (the PROFIBUS NIU is faulted), the extended diagnostic
information is not reported to the master after the timeout. The
PNIU remains in a faulted state but reports to the PROFIBUS
master that it has no extended diagnostic information (however,
the correct fault information is reported via the NIU’s
Status/Control Bytes.). This condition persists until either the
PNIU’s fault table is cleared, or the current fault is read from the
Status/Control Bytes.

VersaMax* PROFIBUS Network Interface Unit
December 2016 GFK-1552L
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Fixed for Version 2.21
•PROFIBUS NIU incorrectly reported “Loss of IO module
fault” after auto configuration. When the PROFIBUS NIU was
auto-configured and power-cycled, its fault LED came ON and it
reported a “Loss of I/O module” fault although the module was
connected. This occurred with module IC200MDD841 and all
other intelligent modules.
•Uncorrected Loss of module and Loss of Rack faults were not re-
reported after Clearing All NIU Faults. The PROFIBUS NIU did
not re-report standing Loss of Module and Loss of Rack faults
after clearing all faults by setting bit 7of PNIU control byte either
through application logic or through reference memory in
Machine Edition.
•PROFIBUS NIU Produced Repeated System Configuration
Mismatch Faults When Analog Current Input Module had
Incorrect Jumper Setting. If the jumper-selected input range on
an Analog Current Input Module did not match the hardware
configuration, the NIU produced System Configuration Mismatch
faults every 2 to 5 seconds. With NIU firmware version 2.22, the
NIU does not log this fault repeatedly.
•PROFIBUS NIU always held the input values of a mismatched
module in their last state regardless of the module’s
configuration. For PROFIBUS NIU firmware version 2.22, the
mismatched module’s inputs are correctly set to either hold last
state or default, according to the module’s “Default/Hold Last
State” configuration parameter.
•VersaMax PROFIBUS NIU does not report loss of module for a
module that fails after jumper mismatch is detected. If an I/O
module that has a mis-matched jumper configuration fails or is
removed from the PROFIBUS NIU station after the NIU detects
the mismatch, the NIU will not report the loss of module fault to
its Masters. If the attempt is made to clear all PROFIBUS NIU
faults (by setting 7th bit of PNIU control byte) while this condition
exists, the NIU would not report any fault for this module. In
PROFIBUS NIU firmware version 2.22, the NIU reports the loss
of module fault and lights its Fault LED.
Preinstallation Check
Carefully inspect all shipping containers for damage. If any equipment
is damaged, notify the delivery service immediately. Save the
damaged shipping container for inspection by the delivery service.
After unpacking the equipment, record all serial numbers. Save the
shipping containers and packing material in case it is necessary to
transport or ship any part of the system.
Quick Start Guide
1. Install the NIU on the DIN Rail by simply clicking it into place.
Note: The NIU and connecting carriers
must be installed on the same section
of 35mm x 7.5mm DIN rail.
The DIN rail must have a conductive
(unpainted) finish for proper
grounding.
(Refer to the heading Module Installation for information about
space requirements or module orientation, or if you are installing
the NIU in an area of excessive vibration).
2. Install the Power Supply on the NIU.
The latch on the power supply must be
in the unlocked position.
Align the connectors and the latch post
and press the power supply module
down until the two tabs on the bottom of
the power supply click into place.
Turn the latch to the locked position to
secure the power supply to the top of
the NIU.
Complete the power supply wiring as described in the installation
instructions provided with the Power Supply.
3. Adjust the rotary switches on the front of the NIU using a
2.44mm (3/32in) flat screwdriver. These switches, marked Node
Address X100, X10 and X1 select the hundreds, tens and units
digits of the network address. Select any valid address in the
range 1-125. Always cycle power to the NIU after changing the
switch settings.
0
0
0
7
6
4
5
8
9
1
1
X1
NODE
ADDRESS
X100
3
2
X10
U
7
6
4
5
8
9
1
3
2
4. Connect the communications bus to the to the connector on
the front of the Network Interface Unit. (Refer to the heading
Bus Installation Guidelines for detailed bus installation
instructions.)
5. Remove the connector cover on the right-hand side of the
NIU. Do not discard this cover; you will need to install it on the
last carrier. It protects the connector pins from damage and
ESD during handling and use. Do not remove the connector
cover on the left-hand side.
6. Install additional modules by mounting modules on their
carriers and sliding them along the DIN rail to fully engage the
connectors in the sides of the carriers.
7. Power up the NIU. The modules in the I/O station will
automatically be configured, starting at slot 1 in each rack
including expansion racks. If an empty slot or faulted module is
encountered, auto-configuration for that rack stops. Auto-
configuration then skips to the next rack and continues until all
racks are configured.
Note: If the I/O station includes any additional power supplies,
those power supplies should be turned on at the same time.
8. Observe the Module LEDs. The LEDs indicate the presence of
power and show the operating mode and status of the NIU.

VersaMax* PROFIBUS Network Interface Unit
December 2016 GFK-1552L
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NETWORK
FORCE
PWR
FAULT
OK
PWR Green indicates power is applied to the
NIU.
OK Green indicates the NIU firmware is
operational.
FAULT Amber indicates the NIU has detected a
fault with itself or an I/O module.
NETWORK Green indicates the NIU is successfully
transferring I/O on the network.
Amber indicates the NIU failed to be
parameterized or rejected the
configuration sent by the master device.
Off indicates the NIU senses no
communication with the master device.
FORCE (future) indicates the presence of any
forced I/O value. Always OFF.
Installation in Hazardous Locations
•EQUIPMENT LABELED WITH REFERENCE TO CLASS I,
GROUPS A, B, C & D, DIV. 2 HAZARDOUS LOCATIONS IS
SUITABLE FOR USE IN CLASS I, DIVISION 2, GROUPS A, B,
C, D OR NON-HAZARDOUS LOCATIONS ONLY
•WARNING - EXPLOSION HAZARD - SUBSTITUTION OF
COMPONENTS MAY IMPAIR SUITABILITY FOR CLASS I,
DIVISION 2;
•WARNING - EXPLOSION HAZARD - WHEN IN HAZARDOUS
LOCATIONS, TURN OFF POWER BEFORE REPLACING OR
WIRING MODULES; AND
•WARNING - EXPLOSION HAZARD - DO NOT DISCONNECT
EQUIPMENT UNLESS POWER HAS BEEN SWITCHED OFF
OR THE AREA IS KNOWN TO BE NONHAZARDOUS.
vGeneral Module Installation Instructions
133.35mm
(5.25in)
1
2
3
85.85mm
(3.38in)
Modules must be mounted on a
horizontal DIN rail.
1. Allow sufficient finger clearance
for opening NIU door.
2. Allow adequate clearance for
serial port cables.
3. Allow adequate space for power
wiring.
The NIU with power supply attached fits
into a 70mm deep enclosure.
Rated thermal specifications are based
on a clearance of 5.1cm (2in) above
and below the equipment and 2.54cm
(1in) to the left of the NIU module.
Panel-Mounting
For best stability, the DIN rail should be installed on a panel using
screws spaced approximately 5.24cm (6in) apart.
If excessive vibration is a factor the NIU should also be screwed down
to the mounting panel.
Note 1. Tolerances are +/- 0.13mm (0.005in) non-cumulative.
Note 2. 1.1-1.4Nm (10-12 in/lbs) of torque should be applied to M3.5
(#6-32) steel screwthreaded into material containing internal
threads and having a minimum thickness of 2.4mm (0.093in).
SEE NOTE 2.
M3.5 (#6) SCREW
15.9mm
0.62in REF
SPLIT LOCK
WASHER
FLAT WASHER
NIU
TAPPED HOLE
IN PANEL
5.1mm
0.200in
4.3mm
0.170in
4.3mm
0.170in
Removing the NIU from the DIN Rail
1. Turn off power to the power supply.
2. (If the NIU is attached to the panel with a screw) remove the
power supply module. Remove the panel-mount screw.
3. Slide the NIU away from the other modules until the connector
on the right side disengages from the next carrier.
4. With a small flathead screwdriver, pull the DIN rail latch out while
tilting the other end of the NIU down to disengage it from the DIN
rail.
Bus Installation Guidelines
The proper cable for a PROFIBUS network is a shielded twisted pair
cable. PROFIBUS cable is sold simply as " PROFIBUS Network
Cable". The twisted pair cable consists of a Green and a Red wire.
Below are some of the characteristics of the PROFIBUS network and
cable.
Network Topology
Linear bus, terminated at both ends. Stubs possible.
Medium
Shielded twisted pair cable. Shielding may be
omitted, depending on the environment.
Number of Stations
32 stations in every segment without repeaters.
With repeaters, extendible up to 127.
Transmission Speed
9.6, 19.2, 93.75, 187.5, 500, 1500 Kbits, 3 Mbits,
6 Mbits, 12 Mbits.
Connector
9-pin D-sub connector
Cable Type
PROFIBUS DP
Impedance
135 to 165 Ohms (3 to 20 MHz)
Capacity
< 30 pF per meter
Resistance
< 110 Ohms per Kilometer
Wire Gauge
> 0.64 mm
Conductor Area
> 0.34 mm2

VersaMax* PROFIBUS Network Interface Unit
December 2016 GFK-1552L
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Bus Length
The maximum bus length using shielded, twisted-pair cable for a
single network segment is 1200 meters. Total network length may be
increased with the use of repeaters, up to a maximum of 3 repeaters
per network. Other cable types may be restricted to shorter bus
lengths.
The maximum bus length also depends on the data rate, as shown in
the following table.
Maximum Bus Length in Meters
Kbits per Second
1,200
9.6
1,200
19.2
1,200
93.75
600
187.5
400
500
200
1,500
100
3,000; 6,000; 12,000
Often, it is the required bus length that determines the data rate. For
data rates up to 500 kbits/second, follow the stub recommendations of
PROFIBUS Part 1. At 1500 kbits/second the overall drop capacity
should be less than 0.2nF. The maximum length of the stub at 1500
kbits/second is 6.6 meters. Cable shielding is recommended at higher
baud rates, to maintain communications integrity in the industrial
environment.
Bus Connectors and Termination
The Network Interface Unit provides the PROFIBUS standard female 9-
pin D subminiature connectors. Cable connectors are available from
most fieldbus parts distributors as "PROFIBUS 9-pin D connectors".
These connectors often provide termination resistors and a switch on the
connector to enable/disable termination. Connectors with and without
termination are also available. The connectors generally label the
connections for the twisted pair as cable A and cable B. The following
table illustrates the proper assignment of wire to connector to pin to
signal.
Wire Color
Connector
Pin
Signal
Red
B
3
RxD/TxD-P
5
DGND
6
VP
Green
A
8
RxD/TxD-N
Termination resistors are needed, as defined in the PROFIBUS
Specification DIN 19245 Part 1 section 3.1.2.5.
Master
Slave
Slave
Slave
Slave
Slave
Termination Required
(Segment 1)
One terminator must be applied at each end of a network segment.
Master
Slave
Slave
Slave
Slave
Slave
Repeater
Termination Required
(Segment 1)
Termination Required
(Segment 2)
Important: For proper network termination, the terminating devices
must provide and maintain power. Power is provided by the device on
Pin 6 and Ground is provided on Pin 5. If power is lost to either
terminating device, the network may not operate correctly. Generally,
the network master device is one of the terminating devices. The other
terminating device may be a critical slave device or a separately
powered, stand-alone terminator.
VP (6)
RxD/TxD-P (3)
RxD/TxD-N (8)
DGND (5)
Ru = 390 Ohms
Rt = 220 Ohms
Rd = 390 Ohms
In addition to the termination shown above, the following
compensation should be added for 12 Mbit bus technology:
To/from
another
node
110nH
110nH
To/from
another
node
110nH
110nH
5
4
3
2
1
9
8
7
6
Bus Grounding
Generally, it is only necessary to ensure that the cable shields are
attached to ground. In most cable connectors, the shield is attached
to the metal housing of the conductor on the cable side and this is
brought to ground by the metal connector on the NIU.
In some installations with large networks or higher data rates, large
ground potentials (greater than ±7V) may arise. In these cases, it
may be necessary to ensure all PROFIBUS devices are attached to
the same Protective Earth ground.
RxD/TxD-P (3)
DGND (5)
VP (6)
RxD/TxD-N (8)
RxD/TxD-P (3)
DGND (5)
VP (6)
RxD/TxD-N (8)
Red (B)
Green (A)

VersaMax* PROFIBUS Network Interface Unit
December 2016 GFK-1552L
5
Expansion Bus
For an NIU Station that includes expansion racks, refer to the
following table for Expansion Bus speeds and cable lengths. This
information supersedes similar information in the VersaMax I/O
Modules Manual, GFK-1504.
Transmitter
IC200ETM00
1 Present?
Receiver
Module Type
Configured
Expansion
bus speed
Actual
Expansion
bus speed
Length of Cable
No
IC200ERM002
Not
configurable
3MHz
Up to 1 meter
Yes
IC200ERM001
Extended
Distance /
Normal
250kHz
Up to 750 meters
Yes
IC200ERM002
Not
configurable
3MHz
Up to 15 meters
Yes
Combination of
IC200ERM001
and
IC200ERM002
Extended
Distance
250kHz
Up to 750 meters for
IC200ERM001,
Up to 15 meters for
IC200ERM002
Yes
Combination of
IC200ERM001
and
IC200ERM002
Normal
250kHz
Up to 750 meters for
IC200ERM001,
Up to 15 meters for
IC200ERM002
Notes:
1. When all Expansion Receiver Modules are configured to
IC200ERM001, the PROFIBUS NIU always sets the speed to
250kHz regardless of the Expansion bus speed setting in Proficy
Machine Edition.
2. In Proficy Machine Edition, Expansion bus speed is not
configurable when all the receivers are configured to
IC200ERM002.
3. In the VersaMax I/O Modules Manual, expansion bus speed
should be described as hertz, not bits/second.
Product Revision History
Rev
Date
Description
IC200PBI001-MH
Dec 2016
EU RoHS compliant module per
directive2011/65/EU dated 8-June-
2011. No changes to features,
performance or compatibility.
Firmware is updated to version 2.22
to support RoHS compliant alternate
component.
IC200PBI001-LG
Dec 2012
Hardware revision to correct noise
issue
IC200PBI001-KG
Feb 2012
Label change. No changes to
features, performance or
compatibility.
IC200PBI001-JG
Mar 2011
IC200PBI001-HG
Feb 2010
Changed manufacturing location. No
changes to compatibility, functionality
or performance.
IC200PBI001-GG
Oct 2008
Updated Power Supply OK signal
circuitry
IC200PBI001-FG
Feb 2008
Firmware version 2.21
IC200PBI001-FF
May 2005
Improved compatibility with Winloader
IC200PBI001-EF
Apr 2004
Changed to V0 plastic for module
housing
IC200PBI001-DF
Jan 2004
ATEX approval
IC200PBI001-CF
Jan 2004
Firmware version 2.20
IC200PBI001-CE
Jan 2002
Firmware version 2.02
IC200PBI001-CD
Apr 2001
Improved powerup operation
IC200PBI001-BD
Nov 2000
Firmware version 2.01
IC200PBI001-BB
Mar 1999
Firmware version 1.10
IC200PBI001-AA
Sept 1998
Initial product release
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*Indicates a trademark of General Electric Company and/or its subsidiaries.
All other trademarks are the property of their respective owners.