COMMUNICATION MEDIUM LEGEND
PV PLANT O&M BUILDING
CONTROL ROOM
OPERATOR DESK 1
OPERATOR DESK 2
1 X 40"
1 X 40"
INDUSTRIAL ETHERNET
OPTIC FIBRE (MM/SM)
PLANT SECURITY
SYSTEM HMI
PLANT BMS HMI
(FDS, HVAC, AUX. SYSTEMS)
NETWORK
PRINTER
* KVMs OPTIONAL DEPENDING
ON PERIPHERAL CABLE LIMIT
W
EB
KVM
2b
IE
NT
HARDWIRED SIGNALS (DI/DO/AI/AO)
CL
1 X 19"
CL
1 X 19"
KVM
1b
1 X 19"
ABBREVIATIONS
IE
NT
CL
CL
W
EB
CL
FIREWALL
IE
NT
IE
NT
ESKOM REMOTE USERS
W
EB
GPS TIME
SERVER
HONEYWELL
INTERFACE PLC
NETWORK SWITCH
(ETH. / F.O)
W
EB
LOCAL
WORKSTATION /
SERVER
ROUTER
MODEM
ESKOM IM/IT
EQUIPMENT
SECURITY & ACCESS
CONTROL SYSTEMS
INTERNET
(ISP)
MODBUS
CMS REDUNDANT
COMMON UPS
POTABLE WATER &
SEWAGE TANK
LEVELS (IO CARD)
19" NETWORK
CABINETS deg C, RH
(IO DEVICE)
COMMON
NETWORK SWITCH
KVM
1a
KVM
2a
CMS SERVER 1
- database
- application
- web
LOCAL CMS
CLIENT 1
PERIPHERAL CABLE (E.g. HDMI / USB)
W
EB
1 X 19"
IE
NT
1 X 19"
CMS OPERATOR SYSTEM 2 HMI
IE
NT
`
1 X 19"
1 X 19"
1 X 19"
CL
1 X 19"
SUB-SYSTEM NETWORK INTERFACE (E.g.RS485)
OS 2
HMI
W
EB
OS 1
HMI
CMS OPERATOR SYSTEM 1 HMI
1 X 19"
INTERFACE CABLE NOT PART OF EPC SCOPE
O&M REMOTE MONITORING CENTRE
1 X 40"
DUAL REDUNDANT
CONFIGURATION
CMS SERVER 2
- database
- application
- web
SCB - String Combiner Box
WS - Weather Station
PoC - Point of Connection
GPS - Global Position System
UPS - Uninterruptable Power Supply
HMI - Human Machine Interface
MV - Medium Voltage
FP – Fire panel
F.O - Fiber optic
KVM – Keyboard, Video, Mouse (Extenders)
CMS -Control and monitoring system
BMS – Building management system
EOD – Electrical operator desk
BTU – Battery tripping unit
HVAC – Heating, ventilation and air-conditioning
O&M – Operations and maintenance
ISP – Internet Service Provider
EOD – Electrical Operator’s Desk at the Power Station
MCCB’s – Motorized control circuit breakers
NSP – Network service provider
RH – Relative Humidity
IO – Input Output
PSU – Power supply unit
1 X 19" BMS NETWORK CABINET
LOCAL CMS
CLIENT 2
O&M BUILDING
HVAC PANEL
(WALL MOUNTED)
3 X 19" CABINETS
NETWORK SWITCH
(ETH. / F.O)
NETWORK SWITCH
(ETH. / F.O)
SERVER ROOM
FIRE PANEL
(WALL MOUNTED)
NOTES
1. This diagram is for indicative purposes to assist during detailed designs.
1 X 19" CMS NETWORK CABINET
2. The Contractor provides the entire scope of work as shown in the network diagram, except for the
equipment or the interface shown in a dashed red line that is not part of the Contractor’s scope of supply.
SERVER ROOM
SINGLE FAULT TOLERANT OPTICAL FIBRE
RING WITH REDUNDANCY MANAGER (RM)
MV INVERTER CABIN #
FIRE PANEL n
POC SWITCHGEAR 1
ENERGY METER
MV INVERTER CABIN #
FIRE PANEL 2
POC SWITCHGEAR 1
ENERGY METER
REFER TO DETAIL “A”
MV INVERTER CABIN #
FIRE PANEL 1
PV PLANT SWITCHGEAR 2
CMS NETWORK PANEL
PV SWITCHGEAR
ROOM HVAC PANEL
PV PLANT SWITCHGEAR 1
CMS NETWORK PANEL
WALL MOUNTED PANELS
INVERTER CABIN n
CMS NETWORK PANEL
INVERTER CABIN 1
CMS NETWORK PANEL
3. The configuration of an interface between the PV plant and the Employer’s system will be a collaborated
effort between the Contractor and the Employer.
4. Refer to design report for specifications of each equipment
DETAIL “A”
PV PLANT SUBSTATION
FIRE DETECTION SYSTEM
EOD
POC SUBSTATION SWITCHGEAR 1
SPLICE TRAY
NETWORK SWITCH
(ETH. / F.O)
DATA ACQUISITION
SYSTEMS [1..n]
DATA ACQUISITION
SYSTEMS [1..n]
DATA ACQUISITION
SYSTEMS [1..n]
METERING PANEL
POC SUBSTATION SWITCHGEAR 2
IM/IT EQUIPMENT
COMPUTER ROOM
METERING PANEL
SECURITY & ACCESS CONTROL
SYSTEMS (SECURITY ENTRANCE)
MCCB 2
SPLICE TRAY
NETWORK SWITCH
(ETH. / F.O)
ESKOM MAIN
METER 2
SPLICE TRAY
NETWORK SWITCH
(ETH. / F.O)
ESKOM CHECK
METER 2
PSU
PSU
GROOTVLEI POWER STATION
MCCB 1
PSU
SWITCHGEAR 2
CMS NETWORK PANEL (WALL MOUNTED)
ESKOM MAIN
METER 1
SWITCHGEAR 1
CMS NETWORK PANEL (WALL MOUNTED)
ESKOM CHECK
METER 1
INVERTER CABIN #
CMS NETWORK PANEL (WALL MOUNTED)
To NSP
(Future)
DNP 3
ESKOM APPROVED
GATEWAY PANEL
MODBUS SIGNALS
BTU 1
PROTECTION
SYSTEM 2
MCCBS 2
PV METER 2
BTU 1
PV METER 1
PROTECTION
SYSTEM 1
MCCBS 1
SWITCHGEAR
PANELS
TRANSFORMERS
SCBs [1..n]
INVERTERS
[1..n]
METEO
STATION
EOD CONTROL SYSTEM & HMI
BREAKER TRIP/STATUS SIGNAS (DI/DO)
DNP 3
CLIENT:
ESKOM
REVISION
DATE
DESCRITPION
AUTHOR
REVISION
DATE
DESCRITPION
AUTHOR
DRAWING DEVELOPED BY:
DRAWING TITLE:
GROOTVLEI POWER STATION PV PLANT
CONCEPTUAL CONTROL AND MONITORING SYSTEM (CMS) NETWORK DIAGRAM
ESKOM ENGINEERING
DRAWING NUMBER:
GRV_PV_C&I_01_Rev. 0