SCHENCK VEG20400
SCHENCK VEG20400
SCHENCK VEG20400
GE 推出了 Sentinel LCT，这是高级超声波流量计系列的新增成员。Sentinel LCT以可靠的技术为基础，具有全新的性能水平，能够以难以置信的速度和精度针对流量变化做出反应。Sentinel LCT 专为原油和精炼产品的贸易交接测量应用而设计，符合 of API MPMS 5.8、OIML R117-1 以及 MID MI-005 的严格要求。
Sentinel LCT 采用的设计原理非常简单，即安装一只集绝对可靠性和最高精度于一身的流量计。使用超声波技术是第一选择；由于没有可动部件，该仪表将不会出现机械磨损或断裂的问题。使用不带垫片或螺纹接头的全焊接结构式另一个选择；仪表的几何结构中没有任何可能变化从而引起仪表偏差的部分。
the following features:
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Flexible: it supports all international standard open fieldbus and can be mixed
4 high-speed fieldbuses can be connected at the same time (max. 12 MBD)
Simple project: only use the same tool CBF (control build f) software for configuration, debugging and diagnosis
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Access to all information from the site, including equipment management information
Global database of Fieldbus equipment, control level and HMI (human-machine interface)
Module identification with production operating parameters
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Complete self diagnosis
Compact and rugged design
Front panel wiring
DIN rail (U-shaped) mounting well can be directly installed on the wall, which is simple and convenient
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Allowable operating ambient temperature 60 C, automatic temperature monitoring
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EMC (electromagnetic compatibility) conforms to en50082 standard
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Certification: CE, Namur, CSA, csa-nrtl, FM class 1 div2, ghost, Lloyd
Installation area: Class 1 div 2
The PS supports the following types of fieldbus standards:
Profibus DP，up to 12 MBd
Modbus RTU，1200 to 38. 4KBd
Industrial” CAN I/0 Bus
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Open CAN -Bus，up to 1 MBd
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Foundation Fieldbus H1
up to 31. 25KBd
Foundation Fieldbus H2 (fast Ethernet)
HART
The system allows different types of field buses to be mixed and run simultaneously in the same field controller PS.
Industrial “field control explosion (AC800F) consists of the following components:
Basic unit pm802f
Power supply sa801f/sd802f
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Ethernet network card ei801f/ei802f/ei803f
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Fieldbus interface card fi810f/fi820f/fi830f
Various accessories
The main components of the field controller PS are described below.
Basic unit pm802f
The basic unit pm802f is composed of a metal rack and a CPU motherboard. It periodically scans the data from the
The signals of the field bus sensors are processed according to the control application program configured by the user, and then the calculation results are passed
The fieldbus interface card returns the corresponding fieldbus actuator.
Two field controllers can realize controller 1:1 redundancy, and undisturbed switching between master and slave PS. Two on each PS
Ethernet network card, the second network card is used to connect the system network diginets), and the second network cards can be interconnected with each other to form a special
Redundant communication link (diginetr) to ensure information synchronization between master and slave PS. — However, the master PS fails, and the slave PS can quickly and undisturbed connect the replacement worker
Make. All inputs and outputs also support redundant operation.
The data communication between the field process controller PS. operating station 0s and the engineer station es is completed by the system network (diginets), which is inserted
The – Ethernet network card on the PS basic unit provides the interface between PS and diginets. ES. Hardware configuration and PS
The user program is downloaded to the PS CPU through diginets and the first network card. After the field bus interface card is newly installed or replaced, the required group
The status information will be automatically reloaded. The configuration results and real-time process data are stored in RAM, and ram is installed on the Ethernet network card or battery card
The backup battery can maintain the configuration content and data in case of power failure.
Basic unit pmbo2f characteristics:
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Installation slots of 4 fieldbus interface cards
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Installation slot of 2 Ethernet network cards
Support redundant operation of Fieldbus interface card
Support hot plug of Fieldbus interface card
Technical indicators of basic unit pib02f:
CPU :Intel 80960HT25/75
32-bit RISC superscalar processor with operation speed of 150 MIPS
4 MB FLASH-EPROM
EEPROM，serial， 16 Kbit
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Ram 8 MB (with error check and correction function, abb patent)
16 K internal cache (CPU cache RAM)
Ram backup battery (matchdog, optional redundancy)
Equipment internal temperature monitoring
Watchdog
I/0 sweeping cycle: configurable.
Time required to process 1000 IL (instructions):
< 1.0 ms (processing binary and 16 bit arithmetic instructions)
<2ms (processing fixed-point arithmetic instructions)
< 1.5ms (processing 32-bit floating-point arithmetic instructions)
Bthernet network card ei801f/ei802f/ei803f
The industrial Ethernet network card provides communication with the system network diginet s (iee802.3 Ethernet
