WEIGHING CONTROLLER
General
JWC-T는 WEIGHING 전용 CONTROLLER 이다.
이 모듈은 로드셀 신호를 연산처리 하여 , 상위 계기로 전송해 주는 역할을 한다.
다수의 로드셀 입력 처리가 가능하다.
전송방식은 전류 (4~20mA) 시그널 과 MODBUS RS422/485 통신이 가능하다.
또한 전용 터치판넬(JWP T)를 이용하여 WEIGHT DISPALY와 CALIBRATION이
Demension and Feature
JWP-이용하여, REAL WEIGHING 가능하다
Specifications
Physical
CPU: Motorola MPC852T
Bus size: 32 bit
System clock: 66 MHz
Removable Flash card size: 32 Mbytes
Power Supply Connection
The duplex terminal unit supports dual power supply connection. In the event of a
single power supply failure both processors are still supplied allowing redundant
operation to continue uninterrupted.
Super cap (Processor): Maintains memory/real time clock and enables hot start for
up to 1 hour in absence of battery backup input
Simplex (O base): Battery support for data in SRAM and the Real-Time
Clock for a minimum of 72 hour continuous (5 year intermittent use)
Redundant: Additional terminals for an external battery connection to support
SRAM and the Real-Time Clock
External rechargeable battery: Retains memory and real-time clock chip in absence
of main supply to extend Warm start capacity > 1 hour.
Communications
ELIN port (LODDER용)
Connectors: Shielded RJ45 connector per processor
Network medium: Ethernet Cat5
Network type: LIN over type Ethernet
Speed: 10/100baseT
Network topology: Star connection to a switch
Line length (maximum): 100 metres, extendible by repeater
RS422/485 serial communications
Connector: 2x RJ45 connector
Comms medium: RS422 (5-wire) or RS485 (3-wire), jumper select
Line impedance: 120Ω-240Ω twisted pair
Line length: 1220m maximum at 9600 bits/sec
Units per line: 16 maximum (electrical loading) expandable by use of buffers
Max number of slaves: 64 serial slave devices
Note: Use of a communications buffer/isolator is recommended.
Modbus/J-BUS
Protocol: Modbus/J-BUS RTU configurable master or slave
Data rate: Selectable 600-38.4k bits/sec
Data format: 8 bit, selectable parity 1/2 stop bits
Modbus data tables: 64, configurable as registers or bits
Maximum table length: 200 registers or 999 bits
Redundancy: Modbus communications are supported by the PAC
in simplex and redundant mode 3 GWF may be run simultaneously
1x Modbus TCP master
1x TCP slave
1x Modbus RTU slave or master
JWC-T : BASE UNIT
The base unit is fitted with the JWC-T I/O controller modules plus
Demension and Feature additional I/O modules. These modules plug onto terminal units, which
provide the wiring interface between the plant or machine and the I/O
modules. Bases are available in 5 sizes to suit the number of modules
required in a particular system.
Communication between the I/O modules and the processor is effected
by the use of a passive internal module I/O bus running the width of the
base.
Each module position is tracked separately for additional security during
live replacement of I/O modules.
The base consists of an aluminium extrusion, the internal I/O bus, and
mounting supports. It is designed to be DIN rail mounted or directly
fixed to a bulkhead or mounting plate. Both base and modules can be
installed horizontally or vertically.
Mechanical
I/O Module Capacity 6 8 16
Width (mm) 214 264 467
Weight Kg (No modules) 0.6 0.7 1.2
Weight kg (all modules) 1.7 2.1 3.7
Height: 180mm
Depth: 102.9-132.9mm with retaining lever raised
Mounting: DIN rail or Bulkhead, can be mounted horizontally or
vertically
DIN rail: Use symmetrical DIN rail to EN50022-35 x 7.5 or 35 x 15
Casing: Without additional protection IP20
Ventilation space: 25mm free space above and below
LOADCELL POWERSUPPLY
Power Supply Connection
2채널 LOADCELL POWER SUPPLY로써 DC TYPE의 LOADCELL에 전원공
급용 모듈이다.
LOCAL LOADCELL 부하에 맞추어 채널구성을 하여 결선하여야 한다.