za dizalice nisan nikad zafrkava se sa servisom (TTS Norlift su bile najace)
ali su bile s bezicnim upravljanjem bez kabine
a one su mi prestavljale hoby job
momak koji je isa na FDG me kontaktira davno prije irekao sam mu sta sam moga i upoznao s njudima sta ocekivat
kad ste pitali na forumu kako mu je onda sam sputia nesto od specifikacija
Praxis Leiden to sta imas je mali sistem (iako oni su nista extra,) prolazni
meni nije ni do prepucavanja ni dokazivanja nego ako kome triba nesto rec onda kazem
a kad vec zelis znat nesto vise izvoli
kad ovo sve shavtis i naucis kucaj na sva vrata bez srama
4.1. General
The Unimacs integrated automation concept consists of the following hardware:
PLC network (coax cable), redundantly provided all over the vessel (25 I/O cabinets) .
PC network, consisting of a glass fibre backbone (ring) between 4 switches, and SFTP cables between PC’s and switches, and finally a large number of PC’s.
Two servers provide the link between the PLC and the PC network.
A guideline through the text below is the drawing 320-3-33-E9110-100-3, ‘I/O’S COMMUNICATIONS SYSTEM’
4.2 The PLC Network
4.2.1 Cabling
Through the vessel two times two coax cables are running:
Two cables (A+B) run at SB (from ER bottom SB up to the forestore).
Two cables (A+B) run at PS (from ER bottom PS up to the cabin of engineer 3).
All cables pass through the ECR and the Wheelhouse.
The cables A SB and A PS make the network A. The cables B SB and B PS make the network B. Both networks are independent and the system can operate perfectly with only one network: the PLC network is redundant.
I.e. when one or more connections/cables/… of network A are broken, an alarm is generated, but the system remains operational. Should at this moment, one connection/cable/… of the network B fail, the system blocks: a fatal alarm is generated, which you cannot accept nor stop the horn.
4.2.2 I/O cabinets
Twenty five I/O cabinets are placed all over the vessel:
• 4 in the engine room,
• 3 in the ECR (incl. ECR desk),
• 5 in the hopper buoyancy spaces,
• 2 in the hydraulic room,
• 1 in every draghead,
• 2 in the pump room (store above),
• 2 in the fore store (jetpumps),
• 2 near the MSB fore,
• 3 in the wheelhouse (in DCD and CNC).
These cabinets are provided with a redundant power supply, a remote I/O rack, in- and output relays, the necessary galvanic isolators for the analog signals, and a number of terminal strips where the signals from throughout the vessel are connected to.
In total more then 3100 I/O’s are divided over the cabinets.
The above mentioned coax cables are connected to the ‘ControlNet’ card in the I/O rack.
4.2.3 Local operator panels
To the mentioned network also the LOP’s are connected. These are the small touch screen panels that are provided in the engineer cabinets and in the public rooms, on which the most recent alarms are visualized.
4.2.4 PLC’s
There are two intelligent PLC’s in the system:
• the DREDGE controller
• the AMCS controller
The dredge controller deals with the dredging process (IHC Systems programming). The AMCS controller deals with the engine room automation (Imtech programming). Both PLC’s can use the same inputs (they are provided with all the necessary inputs of the system). The outputs are divided over both PLC’s: an output can only be set by one controller.
This again is split up over the output cards: an output card in any I/O cabinet is dedicated to only one PLC: Dredge or AMCS.
Above this, the AMCS controller is provided with a ‘hot standby’ function. The controller are in fact two PLC’s, where one PLC is active, and the second is constantly synchronizing. When the first controller fails, an alarm is generated and the second controller takes over (when it was synchrone).
When the problem with the first PLC is solved, it synchronizes with the second one, and it will take over when the second controller fails.
4.2.5 DP/DT
Apart from the above mentioned PLC’s, a PLC is provided for the dynamic positioning system. This PLC controls the outputs to the rudder, the main propulsion and the transverse thrusters, provided the DP/DT is selected by the helmsman. Although the DP/DT is interfaced with the IMC, it is independent of the PC network and remains fully operational with the PC network down.
The control of the main propulsion and the transverse thrusters runs via the PLC network, the control of the rudders is direct, i.e. independent of the PLC network.
4.3 The PC Network
4.3.1 Cabling:
A Gigabit glass fibre ring is laid through the vessel, between four switches (two in the wheelhouse -–19 inch rack, and two in the ECR). The ring may be broken at any location: an alarm is generated and the system remains in operation.
Every PC is provided with two network cards: one card is connected with one switch, the other card with another switch. One connection/communication card/… may be broken: an alarm is generated and the PC remains in operation.
4.3.2 Servers
There are two servers, the primary and the secondary. Default the primary server is dealing with all the I/O’s. The secondary server is ‘hot standby’: in case of a failure of the primary server, the secondary takes over automatically, and an alarm is generated.
In case the secondary is active and fails, the system does not switch-over automatically to the primary: this must be done manually.
I.e. in case of a primary server failure and the secondary has become active, the electrician has to be called to put the primary back to operation (eventually with the help of Imtech-IHC Systems).
The above servers are also called the SCADA servers, or the sensor managers (as these servers manage all the ‘sensors’, also some sensors that are put directly to the computer, not via a PLC: e.g. the gyro compass, the DGPS’s, the wind sensor,…).
A so-called ‘development server’ is placed in the ship’s office, allowing servicing of the PLC programs of AMCS and DREDGE controllers and advanced datalogging.
For ECDIS there is an ECDIS server. For every radar there is a RADAR server. These PC’s are placed in the 19 inch rack in the wheelhouse. Their function is the interfacing of ECDIS and Radar with the network, in a way that on every multifunctional station the radar and the ECDIS screens can be shown.
4.3.3 Workstations (PC’s).
Apart from the above mentioned (five) servers, there are 17 workstations connected to the network. As follows:
• 5 multifunctional stations in the CNC.
• 1 DP/DT console in the CNC.
• 3 dredging(/AMCS) stations in the DCD.
• 1 ECDIS station in the chart table.
• 2 Survey stations in the survey desk (only limited communication).
• 3 AMCS(/dredging) stations in the ECR desk.
• 1 dredging(/AMCS) station in the office.
Multifunctional means that the following range of programs is running on the PC:
• Conning (navigational data)
• ECDIS
• Radar
• Dredging
• AMCS
• DP
Further a laptop is provided, that can be connected to any location on the vessel (also to the LOP’s), on which the dredging/AMCS application is running. The laptop also allows servicing of the PLC programs of AMCS and DREDGE controllers (Control Logix program).
4
.3.4 Inmarsat-B
To the network the Satcom B is connected, enabling servicing of the PC’s and PLC’s from shore, via the so-called HSD connection .
For this purpose, on shore a PC is provided that can communicate with the vessel via an ISDN modem, with the program PC Anywhere.
Via the office PC can be navigated through the complete PC and PLC network.
ovo je ono ocemu si pricao samo pricamo o ciloj jedinici ne dizalicama
