Camille Bauer EMMOD201 V2.0 User manual

Table of contents
1. Introduction ..............................................................................................................................................................2
2. Connecting devices .................................................................................................................................................3
3. Interface realization .................................................................................................................................................4
4. Measurands acquisition...........................................................................................................................................5
4.1 Present measurands .........................................................................................................................................5
4.2 Minimum / Maximum values..............................................................................................................................7
4.3 Meter contents...................................................................................................................................................9
4.4 Mean values ....................................................................................................................................................10
4.5 Mean values progression (Logger) .................................................................................................................12
4.6 Measurands overflow ......................................................................................................................................13
5. Status interrogation / remote control .....................................................................................................................14
5.1 Status interrogation .........................................................................................................................................14
5.2 Remote control of digital outputs.....................................................................................................................14
5.3 Setting tariff situation.......................................................................................................................................14
5.4 Synchronization via bus interface ...................................................................................................................14
5.5 Firmware versions and device type ................................................................................................................15
6. Resetting measurands...........................................................................................................................................16
6.1 Resetting minimum and maximum values ......................................................................................................16
6.2 Setting / resetting meters ................................................................................................................................17
7. Configuration .........................................................................................................................................................18
Appendix: Display matrices, system dependent.........................................................................................................24
The basics for the understanding of the MODBUS®communication is summarised in a separated document:
"Modbus Basics.pdf" (available via our Website http://www.camillebauer.com)
Within that document you will find detailed telegram examples, also for Modbus/TCP communication.
MODBUS
®
- Modbus is a registered trade mark of Schneider Electric. Detailed protocol specifications are available via the
Website http://www.modbus.org
Modification Date Vis.: Type: EMMOD201 Nr.: 1 / 26 gez.: 26.11.02 RR
27.02.09 RR Description: Interface definition EMMOD201 V2.0 Zeichnr.: W2414e

Modification Date Vis.: Type: EMMOD201 Nr.: 2 / 26 gez.: 26.11.02 RR
27.02.09 RR Description: Interface definition EMMOD201 V2.0 Zeichnr.: W2414e
1. Introduction
The devices of the A200 series of multi-functional power meters may be equipped with an optional extension module. Within this
document the communication with the module EMMOD201 is shown. It provides a switch able RS232 / RS485 interface,
memory for a logger and a digital input.
Basically three different operating modes may be realized:
- Standalone: The module is used for configuring the device only. There is no permanent connection to a master (PC) or it is
not fixed all the time.
- Bus service: Up to 32 devices may be interconnected via RS485 interface. Measured data are requested permanently via a
MODBUS master.
- Full device control via bus: Beside the interrogation of measurands the synchronization of the mean power values, tariff
switching and digital output driving (on-site alarming) may be performed via bus interface. The MODBUS master is fully
responsible for a permanent control of the devices and acquires measurands periodically.
The following functions can be performed using the extension module:
- Interrogation of device features
- Modification of device features
- Acquisition of present measurands
- Acquisition of integrated mean-power values
- Interrogation / setting / resetting of meter contents
- Resetting minimum / maximum values
- Acquisition of mean-power values stored in the logger
- Synchronization, tariff switching or direct output driving of digital outputs via bus interface
This document describes all these functions. For communication protocols according to the MODBUS specification are used.
However, normally you will work with an existing hardware and / or software platform. Therefore we will give a help to various
users which chapters of this document are of help for him.
Hardware installer
2. Connecting devices
MODBUS®tool user
4. Measurand acquisition
Engineer who wants to realize an independent measurand acquisition
4. Measurand acquisition
5. Status interrogation / remote control
6. Resetting measurands
Engineer who wants to realize independent configuration software
3. Interface realization
7. Configuration

2. Connecting devices
RS485: MODBUS interface
The switch on the extension module has to be in position RS485.One should use twisted signal wires cables and pay attention
to the polarity. GND can be connected with a wire or the cable screen. Screened cables must be used in an environment with
interference.
If long wires (> 10m) are used, termination resistors of each 120 Ohm are necessary on both bus ends. Additionally supply
resistors of 500...1000 Ohm to signal GND and +5V are required. Normally these supply resistors are part of the bus master
interface.
Attention: Simple interface converters have no built-in supply resistors. Devices with supply resistors are e.g. W&T 13601 (PC
card) or W&T 86201 (converter) of Wiesemann & Theis GmbH.
Beware of long stubs, a simple line network is ideal. Up to 32 devices (including the master) may be interconnected.
EMMOD201
MASTER
EMMOD201
+ 3.3/+5V
Rs
Rs
Rt
Rt
30
31
32
1)
Rb
+6V
30
31
32
33
34
Vz
EMMOD201
123
31
Rb
+6V
30
31
32
33
34
Vz
RS485 Bus
Rx/Tx-,B
Rx/Tx+,A
GND
EMMOD201
30
31
32
Dig.Inp.
Dig.Inp.
++
+---
+
-
HT/LT,
Sync.
+
+-
-
All devices must use the same bus settings (baudrate, parity control) but a unique device address. These settings may
be performed locally at the device or via RS232 interface.
1) One ground connection only. This is possibly already made at the master (PC).
Rt Termination resistors 120 Ohm
Rs Bus supply resistors 500...1000 Ohm
Rb Contact input supply resistors 4.5kOhm
Vz 6.2V zener diode for protection
RS232: Programming interface
The switch on the extension module has to be in position RS232. Using a PC, the software A200plus and an interface adapter
cable RS232 (order no. 152 603) the configuration settings can be clearly and easily made. All the bus functions are available.
However, interconnetion of more than one device is impossible.
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27.02.09 RR Description: Interface definition EMMOD201 V2.0 Zeichnr.: W2414e

Modification Date Vis.: Type: EMMOD201 Nr.: 4 / 26 gez.: 26.11.02 RR
27.02.09 RR Description: Interface definition EMMOD201 V2.0 Zeichnr.: W2414e
3. Interface realization
Supported functions
Code MODBUS®function Used for ...
03HREAD HOLDING REGISTERS - Acquisition of measurands, meter contents, mean-values,
logger data
- Configuration data upload
08HDIAGNOSTIC - By means of the sub-function 0 the connection to the
device may be tested.
10HPRESET MULTIPLE REGISTERS - Configuration
- Setting /resetting meters
- Resetting minimum/maximum values
Supported transmission modes
* RS232 Fixed settings: 9600Bd, 1 start bit, 8 data bits, even parity, 1 stop bit, device address 255
* RS485 Baudrate 1200, 2400, 4800, 9600 or 19200 Bd (configurable)
Char. format: 1 start, 8 data, even parity, 1 stop bit
1 start, 8 data, odd parity, 1 stop bit
1 start, 8 data, no parity, 2 stop bit
1 start, 8 data, no parity, 1 stop bit (often used, but not in accordance with MODBUS specification)
The settings of the transmission parameters and the device address for the RS485 interface may be performed via the front
panel of the device or by software using the RS232 interface.
Further applicability
Via the module EMMOD201 a Modbus/TCP communication via Ethernet may be realized as well. Up to 32 devices may be
interconnected via RS485. They can be connected to an Ethernet network using a Modbus RTU/TCP gateway.
The basics for the understanding of the MODBUS®communication is summarised in a separated document:
"Modbus Basics.pdf" (available via our Website http://www.camillebauer.com)
Within that document you will find detailed telegram examples, also for Modbus/TCP communication.

Modification Date Vis.: Type: EMMOD201 Nr.: 5 / 26 gez.: 26.11.02 RR
27.02.09 RR Description: Interface definition EMMOD201 V2.0 Zeichnr.: W2414e
4. Measurands acquisition
The power monitoring devices acquire the measurands of an electrical power system. These measurands and derived quantities
may be interrogated via the extension module EMMOD201. This information can be divided as follows:
1. Present measurands
2. Minimum / maximum values
3. Meter contents
4. Mean-power values (integrated for a synchronization interval)
5. Progression of mean-power values (Logger)
4.1 Present measurands
4.1.1 General present measurands
Register
address
Measurand single-phase / 3 or 4-wire
balanced load systems
3-wire unb.
system
4-wire unb.
system
100 U ☻- -
102 U1N - - ☻
104 U2N - - ☻
106 U3N - - ☻
108 U12 - ☻☻
110 U23 - ☻☻
112 U31 - ☻☻
114 I ☻- -
116 I1 - ☻☻
118 I2 - ☻☻
120 I3 - ☻☻
122 Iavg ☻- -
124 I1_avg - ☻☻
126 I2_avg - ☻☻
128 I3_avg - ☻☻
130 IN - - ☻
132 P1 - - ☻
134 P2 - - ☻
136 P3 - - ☻
138 P ☻☻☻
140 Q1 - - ☻
142 Q2 - - ☻
144 Q3 - - ☻
146 Q ☻☻☻
148 S1 - - ☻
150 S2 - - ☻
152 S3 - - ☻
154 S ☻☻☻
156 F ☻☻☻
158 PF1 - - ☻
160 PF2 - - ☻
162 PF3 - - ☻
164 PF ☻☻☻
166 Umean - ☻☻A230 only: Mean value of voltages
168 Imean - ☻☻A230 only: Mean value of currents
170 UNE - - ☻A230 only: Zero displacement voltage
172 Pint_tnd1 ☻☻☻A230 only: Mean power value P incoming (trend)
174 Qint_tnd1 ☻☻☻A230 only: Mean power value Q ind. / incoming (trend)
176 Sint_tnd ☻☻☻A230 only: Mean power value S (trend)
178 Pint_tnd2 ☻☻☻A230 only: Mean power value P outg. (trend)
180 Qint_tnd2 ☻☻☻A230 only: Mean power value Q cap. / outg. (trend)
The active measurand of the reactive power intervals for the A230 arise from the configuration in 'Disp_Mode' (see chapter 7).
Legend: ☻= Valid measurand - = Not used (value=0.00)
All values are 32-bit float numbers (2 registers for each value), scaled on primary values.

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27.02.09 RR Description: Interface definition EMMOD201 V2.0 Zeichnr.: W2414e
4.1.2 Present measurands unbalance / THD (A230 only)
Register
address
Measurand single-phase / 3 or 4-wire
balanced load systems
3-wire unb.
system
4-wire unb.
system
184 unb.U - - ☻Unbalance factor
185 THD.Ux U U12 U1 Harmonic content U / U12 / U1
186 THD.Ux - U23 U2 Harmonic content U23 / U2
187 THD.Ux - U31 U3 Harmonic content U31 / U3
188 THD.Ix I I1 I1 Harmonic content I / I1
189 THD.Ix - I2 I2 Harmonic content I2
190 THD.Ix - I3 I3 Harmonic content I3
Legend: ☻= Valid measurand - = Not used (value=0.00)
All these values are unsigned 16-bit numbers (1 register per value). 1000 corresponds to 100%.
4.1.3 Present harmonic contents (A230 only)
Register
address
Measurand single-phase / 3 or 4-wire
balanced load systems
3-wire unb.
system
4-wire unb.
system
600 H2.Ux U U12 U1N 2nd harmonic content
601 H3.Ux U U12 U1N 3rd harmonic content
... Hn.Ux U U12 U1N nth harmonic content
612 H14.Ux U U12 U1N 14th harmonic content
613 H15.Ux U U12 U1N 15th harmonic content
614 H2.Ux - U23 U2N 2nd harmonic content
615 H3.Ux - U23 U2N 3rd harmonic content
... Hn.Ux - U23 U2N nth harmonic content
626 H14.Ux - U23 U2N 14th harmonic content
627 H15.Ux - U23 U2N 15th harmonic content
628 H2.Ux - U31 U3N 2nd harmonic content
629 H3.Ux - U31 U3N 3rd harmonic content
... Hn.Ux - U31 U3N nth harmonic content
640 H14.Ux - U31 U3N 14th harmonic content
641 H15.Ux - U31 U3N 15th harmonic content
642 H2.Ix I I1 I1 2nd harmonic content
643 H3.Ix I I1 I1 3rd harmonic content
... Hn.Ix I I1 I1 nth harmonic content
654 H14.Ix I I1 I1 14th harmonic content
655 H15.Ix I I1 I1 15th harmonic content
656 H2.Ix - I2 I2 2nd harmonic content
657 H3.Ix - I2 I2 3rd harmonic content
... Hn.Ix - I2 I2 nth harmonic content
668 H14.Ix - I2 I2 14th harmonic content
669 H15.Ix - I2 I2 15th harmonic content
670 H2.Ix - I3 I3 2nd harmonic content
671 H3.Ix - I3 I3 3rd harmonic content
... Hn.Ix - I3 I3 nth harmonic content
682 H14.Ix - I3 I3 14th harmonic content
683 H15.Ix - I3 I3 15th harmonic content
All harmonic values are unsigned 16-bit numbers (1 register per value). 1000 corresponds to 100%. The values refer to the
fundamental wave, which is fixed to 100%.

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27.02.09 RR Description: Interface definition EMMOD201 V2.0 Zeichnr.: W2414e
4.2 Minimum / Maximum values
4.2.1 Minimum / Maximum values 1
Register
address
Measurand single-phase / 3 or 4-wire
balanced load systems
3-wire unb.
system
4-wire unb.
system
200 Umax ☻- -
202 U1Nmax - - ☻
204 U2Nmax - - ☻
206 U3Nmax - - ☻
208 U12max - ☻☻
210 U23max - ☻☻
212 U31max - ☻☻
214 I1max ☻- -
216 I1max - ☻☻
218 I2max - ☻☻
220 I3max - ☻☻
222 Iavgmax ☻- -
224 I1avgmax - ☻☻
226 I2avgmax - ☻☻
228 I3avgmax - ☻☻
230 INmax - - ☻
232 P1max - - ☻
234 P2max - - ☻
236 P3max - - ☻
238 Pmax ☻☻☻
240 Q1max - - ☻
242 Q2max - - ☻
244 Q3max - - ☻
246 Qmax ☻☻☻
248 S1max - - ☻
250 S2max - - ☻
252 S3max - - ☻
254 Smax ☻☻☻
256 Umin ☻- -
258 U1Nmin - - ☻
260 U2Nmin - - ☻
262 U3Nmin - - ☻
264 U12min - ☻☻
266 U23min - ☻☻
268 U31min - ☻☻
270 PFmin.inc.ind ☻☻☻A230 only: Incoming
272 PFmin.inc.cap ☻☻☻A230 only: Incoming
274 PFmin.out.ind ☻☻☻A230 only: Outgoing
276 PFmin.out.cap ☻☻☻A230 only: Outgoing
278 Fmin ☻☻☻A230 only
280 Fmax ☻☻☻A230 only
282 UNEmax - - ☻A230 only
Legend: ☻= Valid measurand - = Not used (value=0.00)
All values are 32-bit float numbers (2 registers for each value), scaled on primary values.

Modification Date Vis.: Type: EMMOD201 Nr.: 8 / 26 gez.: 26.11.02 RR
27.02.09 RR Description: Interface definition EMMOD201 V2.0 Zeichnr.: W2414e
4.2.2 Maximum values of THD / harmonic contents (A230 only)
Register
address
Measurand single-phase / 3 or 4-wire
balanced load systems
3-wire unb.
system
4-wire unb.
system
700 unb.Umax - - ☻Unbalance U maximum
701 THD.Uxmax U U12 U1N
702 THD.Uxmax - U23 U2N
703 THD.Uxmax - U31 U3N
704 THD.Ixmax I I1 I1
705 THD.Ixmax - I2 I2
706 THD.Ixmax - I3 I3
707 H2.Uxmax U U12 U1N
708 H3.Uxmax U U12 U1N
... Hn.Uxmax U U12 U1N
719 H14.Uxmax U U12 U1N
720 H15.Uxmax U U12 U1N
721 H2.Uxmax - U23 U2N
722 H3.Uxmax - U23 U2N
... Hn.Uxmax - U23 U2N
733 H14.Uxmax - U23 U2N
734 H15.Uxmax - U23 U2N
735 H2.Uxmax - U31 U3N
736 H3.Uxmax - U31 U3N
... Hn.Uxmax - U31 U3N
747 H14.Uxmax - U31 U3N
748 H15.Uxmax - U31 U3N
749 H2.Ixmax I I1 I1
750 H3.Ixmax I I1 I1
... Hn.Ixmax I I1 I1
761 H14.Ixmax I I1 I1
762 H15.Ixmax I I1 I1
763 H2.Ixmax - I2 I2
764 H3.Ixmax - I2 I2
... Hn.Ixmax - I2 I2
775 H14.Ixmax - I2 I2
776 H15.Ixmax - I2 I2
777 H2.Ixmax - I3 I3
778 H3.Ixmax - I3 I3
... Hn.Ixmax - I3 I3
789 H14.Ixmax - I3 I3
790 H15.Ixmax - I3 I3
All harmonic values are unsigned 16-bit numbers (1 register per value). 1000 corresponds to 100%. The values refer to the
fundamental wave, which is fixed to 100%.

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27.02.09 RR Description: Interface definition EMMOD201 V2.0 Zeichnr.: W2414e
4.3 Meter contents
Register No tariff switching Tariff switching activated
300 P incoming P incoming HT
302 - P incoming LT
304 P outgoing P outgoing HT
306 - P outgoing LT
308 Q inductive / incoming Q inductive / incoming HT
310 - Q inductive / incoming LT
312 Q capacitive / outgoing Q capacitive / outgoing HT
314 - Q capacitive / outgoing LT
All meter contents are unsigned 32-bit integer numbers (2 registers for each value). These values refer to the significant
numbers, which will be displayed on the display unit itself.
The active reactive power meters for the A230 arise from the configuration in 'Disp_Mode' (see chapter 7).
Unit factor
Register No tariff switching Tariff switching activated
320 Unit factor x
The unit factor is an unsigned 16-bit integer number. It is used to scale the meter contents to the appropriate physical unit and to
define the number of post decimal positions. It contains as well the conversion for possibly connected primary transformers.
Physical meter content = Meter content * 10 x[Wh or varh]
Example: Pincoming = 12056; E = 4
Meter content: 12056 x 104 [Wh] =12056 x 106 x 10-2 [Wh] = 120.56 [MWh]
| |
[MWh] 2 post decimal positions

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4.4 Mean values
4.4.1 Mean-power values
Register Measurand A210 / A220 A230
350 P_int_0 Incoming-outgoing (Last value) Incoming (Last value)
352 P_int_1 Incoming-outgoing (t – 1 interval) Incoming (t – 1 interval)
354 P_int_2 Incoming-outgoing (t – 2 interval) Incoming (t – 2 interval)
356 P_int_3 Incoming-outgoing (t – 3 interval) Incoming (t – 3 interval)
358 P_int_4 Incoming-outgoing (t – 4 interval) Incoming (t – 4 interval)
360 Q_int_0 Capac.+induct. (Last value) Inductive / incoming (Last value)
362 Q_int_1 Capac.+induct. (t – 1 interval) Inductive / incoming (t – 1 interval)
364 Q_int_2 Capac.+induct. (t – 2 interval) Inductive / incoming (t – 2 interval)
366 Q_int_3 Capac.+induct. (t – 3 interval) Inductive / incoming (t – 3 interval)
368 Q_int_4 Capac.+induct. (t – 4 interval) Inductive / incoming (t – 4 interval)
370 S_int_0 t t
372 S_int_1 t – 1 interval t – 1 interval
374 S_int_2 t – 2 interval t – 2 interval
376 S_int_3 t – 3 interval t – 3 interval
378 S_int_4 t – 4 interval t – 4 interval
380 P_int_0 - Outgoing (Last value)
382 P_int_1 - Outgoing (t – 1 interval)
384 P_int_2 - Outgoing (t – 2 interval)
386 P_int_3 - Outgoing (t – 3 interval)
388 P_int_4 - Outgoing (t – 4 interval)
390 Q_int_0 - Capacitive / outgoing (Last value)
392 Q_int_1 - Capacitive / outgoing (t – 1 interval)
394 Q_int_2 - Capacitive / outgoing (t – 2 interval)
396 Q_int_3 - Capacitive / outgoing (t – 3 interval)
398 Q_int_4 - Capacitive / outgoing (t – 4 interval)
The active measurand of the reactive power intervals for the A230 arise from the configuration in 'Disp_Mode' (see chapter 7).
All values are 32-bit float numbers (2 registers for each value), scaled on primary values.
4.4.2 Maximum / Minimum of mean-power values (A230 only)
Register Measurand
330 P.inc-int.max Incoming
332 Qx-int.max Inductive / incoming
334 S.int.max
336 P.out-int.max Outgoing
338 Qx-int.max Capacitive / outgoing
340 P.inc-int.min Incoming
342 Qx-int.min Inductive / incoming
344 S.int.min
346 P.out-int.min Outgoing
348 Qx-int.min Capacitive / outgoing
The active measurand of the reactive power intervals for the A230 arise from the configuration in 'Disp_Mode' (see chapter 7).
All values are 32-bit float numbers (2 registers for each value), scaled on primary values.