System Components and Technical Data
SICAM A8000 / CP-8000 • CP-8021 • CP-8022 Manual
Unrestricted
123
DC8-037-2.02, Edition 10.2017
•
Special Functions
─
SICAM FCM “parameter loading“ (SICAM FCM V2.00, V2.10, V2.20, V2.30)
─
SICAM FCM “firmware loading“ (SICAM FCM >=V2.00)
•
Engineering
─
TOOLBOX II + OPM
─
Web engineering
___
1)
this specification refers to the max. number of possible stations for MODBUS Master in SICAM
RTUs (per communication interface); due to performance and required response time, in most cas-
es only a few stations are possible (typ. 20-30); the MODBUS protocol itself defines a max. possible
number of 247 stations per line
2)
broadcast addressing is only restricted supported by Master
3)
external converters (V.24/V.28
↔
V.11) are required in some cases
Substation
•
Serial communication according to Modicon MODBUS
MODST0 is substation
•
MODBUS protocol – half duplex link transmission procedure
─
MODBUS RTU-Mode
─
MODBUS ASCII-Mode
•
Max. connections: 1
1)
•
Message protection
─
CRC16 + parity (optional) “RTU-Mode“
─
LRC + parity (optional) “ASCII-Mode“
•
Network Configurations
─
Point-to-point
─
Multiple point-to-point (extra interface required for each point-to-point configuration)
─
Multipoint-partyline
─
Multipoint-star
─
Data concentrator
•
MODBUS Slave address 0 “broadcast“
•
MODBUS Slave addresses 1…247
•
Physical interface
─
RS-232 - unbalanced interface according V.24/V.28 standard
─
RS-485 - balanced interface according V.11 standard
2)
─
RS-422 - balanced interface according V.11 standard
2)
─
Transmission line (half duplex)
•
Interoperability according to the following documents:
─
SICAM RTUs MODBUS Interoperability
(DC0-073-2)
•
Clock synchronization for selected MODBUS Slave devices
─
Clock synchronization for OMV
•
Optimized parameters for selected transmission facilities (modems)
─
Predefined optimized parameters for selected transmission facilities
─
Free definable parameters for transmission facility
─
5 V power supply for external modem
ATTENTION: check power consumption of external modem!
Summary of Contents for CP-8000
Page 604: ......