Siemens FDK:521H1134 User manual

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Operating Manual
Order no.: FDK:521H1134
SFIDK.PS.023.A2.02
SITRANS F M MAGFLO

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SITRANS F C MASSFLO

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CANopen add-on module for
USM II transmitters
s

CANopen add-on module
SFIDK.PS.023.A2.02
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Contents 1. Introduction ................................................................................................................... 3
2. Technical data ............................................................................................................... 4
3. Installation ..................................................................................................................... 5
3.1 Add-on module ............................................................................................................... 5
3.2 General electrical information ......................................................................................... 6
3.3 USM II connections ........................................................................................................ 6
3.4 Standard CAN connection .............................................................................................. 6
3.5 CAN bus termination ...................................................................................................... 7
3.6 CAN topology .................................................................................................................7
3.7 Cable length versus baudrate ........................................................................................ 7
3.8 Cable specification DC characteristics ........................................................................... 8
3.9 Cable specification cross-section CAN Bus-line cross-sections ..................................... 8
4. Commissioning ............................................................................................................. 9
4.1 CANopen display menu .................................................................................................. 9
4.2 Menu item explanation ................................................................................................. 10
5. Object dictionary overview ........................................................................................ 11
6. PDOs (Process Data Objects) ................................................................................... 12
6.1 What is a PDO .............................................................................................................. 12
6.1.1 TX PDOs ......................................................................................................... 12
6.1.2 RX PDOs ......................................................................................................... 12
7. SDOs (Service Data Objects) ..................................................................................... 13
APPENDIX A
SI-units used in USM II products .................................................................................. 22
APPENDIX B
Raw communication example ....................................................................................... 23

CANopen add-on module
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SFIDK.PS.023.A2.02
This manual is intended to provide instructions for the installation and use of the CANopen add-
on module, product code number FDK:085U0228, that can be used in the Siemens Flow
Instruments USM II family of transmitters, which presently includes MAG 6000 and MASS 6000.
The CANopen module is effectively a gateway through which a CANopen master device can have
controlled access to a number of Siemens Flow Instruments USM II signal converter parameters.
This manual is not intended to be a complete tutorial on the CANopen protocol, and it is assumed
the end user already has a general working knowledge of CANopen communications, especially
in respect of master station configuration and operation. However an overview is included in the
following section to explain some of the fundamental aspects of the protocol.
1. Introduction
1. Introduction

CANopen add-on module
SFIDK.PS.023.A2.02
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MASS 6000 (2) Value returned is dependent on the BATCH
1) Mass flow + Totalizer 1 function.
2) Density + Temperature + Pct. Fraction A (1) When ON, batch progress is returned.
3) Volume flow + Totalizer 2 (2) When OFF, TOTALIZER 2 is returned.
4) Fraction A (1) + Fraction B (1)
2. Technical data
2. Technical data CANopen specification
NMT(Network Management) Slave
Baud rates 10, 20, 50, 100, 125, 250, 500, 1000 Kbits/s
Number of stations Recommended max. 50 per segment (Total max. 127)
Error control Node guarding, heartbeat
Node id Software, from display
No. of PDO’s MAG: RX=1 TX=2 MASS: RX=1 TX=4
PDO modes Event triggered
PDO linking Yes
PDO mapping Yes, default
No. of SDO’s 1 Server 0 Client
Emergency message No
CANopen version DS-301 V4.01
Framework No
Certified No
Device profile Siemens Flow Instruments specific
Cable specification
Cable design Four wire (two pairs) twisted pair with shield
Shielding CU shielding braid or shielding braid and shielding foil
Impedance 35 up to 165 Ohm at frequencies from 3 to 20 mHz
Cable capacity < 130 pF per meter at 1000 kbit/s at 40 m
Core diameter > 0.34 mm2at 1000 kbit/s at 40 m (corresponds to
AWG 22)
Resistance < 26 Ohm per km at 1000 kbit/s at 40 m
Signal attenuation Max. 9 dB over total length of line section
Max. bus length Up to 1 km at 50 kbit/s. Extendable by repeaters
Default PDO’s:
MAG 6000
1) Volume flow + Totalizer 1 (1) Requires a SENSORPROMflow memory unit
2) Totalizer 2 (2) containing valid fraction data.

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SFIDK.PS.023.A2.02
3. Installation
3. Installation
3.1 Add-on module
19” rack mounted versions IP 67 compact versions
The installation procedure for an add-on module to a Siemens Flow Instruments USM II
transmitter is as follows:
1. Unpack the add-on module and
insert it in the bottom of the signal
converter as shown.
2. Press the add-on module in the
direction shown, until it stops and
is firmly seated in position.
3. This completes the add-on mo-
dule installation, and the signal
converter may now be connected
to the terminal box. Communica-
tion with the display/keypad and
the electrical input/output termi-
nals is established automatically
when the power is applied.

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3.2 General electrical
information
3.3 USM II connections The following table shows the connection layout
for the USM II CANopen module:
On the electrical termination boards for USM II transmitters, additional input/output terminals
have been reserved for add-on module functions. The numbering range of these terminals is as
follows, but how many are actually used depends on the type of add-on module. Please refer to
the relevant handbook for other electrical connection information.
Terminals reserved for add-on modules:
MAG 6000: 91 - 97
MASS 6000: 91 - 100
Note
The standard inputs and outputs continue to function and are not affected by the presence of an
add-on module. Any existing transmitter electrical connections can remain undisturbed.
Siemens terminal CANopen signal
number
91 CAN_LO
92 CAN_HI
93 CAN_GND
3.4 Standard CAN con-
nection
For reference purposes, the following table is included to show the pin assignment for a Sub-D-
9 plug configured similar to CiA DS 102 version 2.0. In addition to this specification, contacts are
used for additional purposes.
Pin Signal Description
1 Reserved by CiA
2 CAN_L CAN Low bus line
3 CAN_GND Ground
4 S 1 Control line (do not connect)
5 S 2 Control line (do not connect)
6 (GND) (Optional ground)
7 CAN_H CAN High bus line
8 S 3 Control line (do not connect)
9 V+CAN Power supply
3. Installation

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3.6 CAN topology
3.7 Cable length versus
baudrate
3.5 CAN bus termination
At 1000 kB transmission rate the 40 m cable length cannot be guarantee in all cases. For each
system the transmission delay in reciever/transmitter has to be evaluated for a correct function
of the system.
3. Installation
A CAN system must always be terminated correctly. Two termination resistors must be present,
one in each end of the trunk line.

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3.8 Cable specification
DC characteristics Bus cable
Bus length Length-related Bus-line cross-section Termination Max.
resistance resistance baurade
0 to 40 m 70 mΩ/m 0.25 mm2to 0.34 mm2124 Ω(1%) 1 Mbit/s
AWG23, AWG22 at 40 m
40 to 300 m <60 mΩ/m 0.34 mm2to 0.6 mm2127 Ω(1%) 500 Mbit/s
AWG22, AWG20 at 100 m
300 to 600 m <40 mΩ/m 0.5 mm2to 0.6 mm2150 Ωto 300 Ω100 Mbit/s
AWG20 at 100 m
600 to 1 km <26 mΩ/m 0.75 mm2to 0.8 mm2150 Ωto 300 Ω50 Mbit/s
AWG18 at 1k m
3.9 Cable specification
cross-section CAN
Bus-line cross-
sections
Length 32 nodes 64 nodes 100 nodes
100 m 0.25 mm20.25 mm20.25 mm2
250 m 0.34 mm20.50 mm20.50 mm2
500 m 0.75 mm20.75 mm21.00 mm2
Wire resistance Rw < 21 Ω(32 nodes), < 18.5 Ω(64 nodes), 16 Ω(100 nodes).
At 1000 kB transmission rate the 40 m cable length cannot be guarantee in all cases. For each
system the transmission delay in reciever/transmitter has to be evaluated for a correct function
of the system.
3. Installation

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4. Commissioning
To change (or view) the CANopen settings from the keypad display.
1. Press [Top key] for two seconds. (NOTE: For “View” mode only, skip steps 2 & 3)
2. Type in password (1000) by pressing [Change key] two times, and then press
[Lock key] and hold for two seconds
3. The display now says “Basic settings”
4. Press [Forward key] until you reach the “CANopen module” menu item
5. Press [Lock key]
6. You can now cycle through all the CANopen settings by pressing [Forward key]
7. Select “CANopen NodeID”
8. Type in the address with the [Change key] and [Next key]
9. Lock the setting with the [Lock key]
10. Select “CANopen Baudrate”
11. Select the desired baudrate with the [Change key]
12. Lock the setting with the [Lock key]
13. Select “Update Rate”
14. Select the desired PDO update rate with the [Change key]
15. Lock the setting with the [Lock key]
16. Press [Top key] for two seconds and you return to 1.
4. Commissioning Before communicating with the
master, baudrate, node id and update rate must be selected.
This can be done from the display. Please look in to the transmitter manual to locate the CANopen
menu.
4.1 CANopen display
menu

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4. Commissioning
4.2 Menu item explana-
tion Item Value Comments
CANopen NodeID 0-127 Device address
CANopen Baudrate 10, 20, 50, 100, 125, Communication speed
250, 500, 1000 kBaud
CANopen SW Version VX.xx CANopen firmware version
Node state Uninitialized, The node states refer to CANopen specification CiA
Initializing, DS 301
Stopped, Uninitialised is displayed, when the AOM could not
Operational, read out a correct value for baudrate and/or node Id
PreOperational, from the SENSORPROMunit, i.e. because this is
new. The AOM does not go on the CAN bus then,
but it waits for a user input of correct values
Initialising is displayed after power-on or reset
Stopped is displayed after a communication stop
command sent from the Master
Operational is displayed when all communication is
active
PreOperational is displayed while waiting for
Start_Remote_Node_request
Update rate Set 0, Set 1, Set 2 Only valid for MASS 6000.
Set 0 = 2 Hz update rate on all measurement values
Set 1 = Set 0, except that massflow is 10 Hz
Set 2* = Set 1, except that totalizers are 5 Hz
* only possible in MASS 6000 SW version 2.00 →
Enter progr. Mode? No, yes Yes = enables a firmware update. When yes is
choused, the menu stops and waits for the firmware
update. A reboot must be performed to get out of
program mode
No = firmware update not possible.
(Normal operation)
The settings are all stored in the non-volatile memory of the SENSORPROMunit, and therefore
remembered after a power down. Even if the module or unit is replaced the settings are kept.
If the SENSORPROMunit is NOT used, then the settings are stored in the transmitters memory.
These settings will however be overruled if the SENSORPROMunit is used again.