Communication - socomec COUNTIS Ci Instrucciones De Servicio

COMMUNICATION

NB:
• The integration time must not exceed
3 silences (the time taken to transmit
a character) for the message to be
processed.
• By selecting slave address 0, the
same message is transmitted to all
the Countis devices present on the
network (only for functions 6 and 16).
NB:
A maximum of 60 words can be read
in one frame.
Address
Decimal Hexadecimal
768 300
770 302
772 304
774 306
776 308
778 30A
780 30C
782 30E
784 310
786 312
788 314
24
The Countis Ci system communicates via a JBUS/MODBUS
ving a master/slave dialogue. Two dialogues are possible:
• the master communicates with a slave (Countis Ci) and waits for its response,
• the master communicates with all the slaves (Countis Ci) without waiting for
their response.
The communication mode is the RTU mode (Remote Terminal Unit) with
hexadecimal characters consisting of 8 bits.
COMMUNICATION FORMAT
This is a standard format consisting of:
Slave address
The following functions are essential in order to make full use of information:
3 to read n words (128 maximum )
6 to write a word
8 to diagnose master/slave exchanges from meters 1, 3, 4, 5 and 6
16 to write n words (128 maximum)
DISPLAY (FUNCTION 3)
METERS
METERS DISPLAY
N° of words (1)
Totalizing meters
2
2
2
2
2
2
2
Pulse meters for power demand storing
2 Value between 2 signals for input 1
2 Value between 2 signals for input 2
2 Value between 2 signals for input 3
2 Value between 2 signals for input 4
Function code Address
Description
Meter 1
Meter 2
Meter 3
Meter 4
Meter 5
Meter 6
Meter 7
Zone size (1): 22 words in decimal or 16 in hexadecimal.
® protocol invol-
Data CRC16
Unity
0.01 kWh
in energy metering
and no value in pulses
Pulses
SOCOMEC - Ref. : 875 092A