The YS1700 Programmable Indicating Controller can be tailored for various applications by running a user program, and offers high reliability thanks to Yokogawa's proprietary technology, user friendliness, and expandability. Standard models are smaller and lighter than earlier series, requiring less space for installation, and are compliant with international safety standards including the CE Mark and FM nonincendive (optional) approvals. For easy replacement of earlier controllers, models requiring the same panel cutout dimensions and depth as those of earlier models are also offered.
Supports on-line module monitaring function
Supports 400 Blocks
Programming is easier with our intuitive function block programming.
The online module monitoring function allows you to confirm the performance while programming.
Backwards compatible with existing YS170 users programs.
Increased programming capacity allows you to create more sophisitated control schemes.
Connection modes: USB, Ethernet or RS485
When connecting via RS485 or Ethernet, a communication option is required on the main unit.
Supports parameter setting for all YS1000 models
Support for YS1700 custom programming.
Calculations done using Engineering units and Floating point math.
Includes over one-hundred computation modules for exponents,
logarithms, temperature/pressure correction, and other operations.
Function blocks (sub-programs) can be saved and reused.
Passwords can be assigned to user programs to prevent unauthorized access to proprietary programs.
A password on the main unit prevents unexpected changes in the engineering parameters.
Compact, lightweight design allows the use of smaller and less expensive panel. Moreover, it allows attachment to doors which was previously difficult.
The control output backup function comes standard with YS1000 series controllers (YS1700 and YS1500) and the Manual Station for MV Setting (YS1360).
With dual-CPU construction (main CPU and display CPU), manual control capability and display continues even if an abnormality occurs on one of the CPUs. If controller self-diagnostics detects a control circuit failure, the controller can suspend analog/digital output, switch to manual mode and allow manual control by operator.
|Main CPU fail||Display CPU fail||All CPU and
|Control with "Hard manual"||X||X||X|
|Manual operation with front keys||X||X||N/A|
|Display for PV and SV||X||X||N/A|
Independent manual override is built into the control circuits, ensuring that control output can continue even when a control circuit including the CPU experiences a problem.
*Comes standard with YS1700-1xx, YS1500-1xx, YS1360-1xx
Nonvolatile memory is used for memory backup. Service life is improved because no batteries, backup capacitors, or other components are used.
The AC/DC (100 V /24 V ) power supply powers the instrument to provide consistent performance.Also accepts DC power regardless of polarity (specify 220 V power supply when ordering).
The YS1000 series achieves higher performance than previous models (YS100 series).
Use the YS110 portable manual station when exchanging or performing maintenance on a controller. You can switch to the spare controller without interrupting the control output.
Tougher environmental resistance.
The instrument can be easily connected to DAQWORX, SMARTDAC+, general-purpose SCADA, and OPC servers via Ethernet (Modbus/TCP).
Ethernet : Available to the YS1000 basic type. Modbus/TCP server function (one connection).
Connections are enabled using the FA-M3' s UT link module and the RS485 communication function. No programming is necessary to exchange data between the instrument and the FA-M3.
The YS1000 can also be connected to PLCs of various manufacturers via the Modbus communication protocol.
Additional I/O can be added by selecting the YS1700 basic model (with Expandable I/O). The total number of input/outputs points with the main unit and Expandable I/O are 8 analog inputs, 4 analog outputs, and 14 DI/DO.
External AI: 3 inputs
External AO: 1 outputs
External DI: 4 points
External DO: 4 points
Note: An interface for the additional Expandable I/O cannot be added after delivery. If there is a possibility that extra input/outputs will be needed, we recommend that you start with the basic model (with expansion I/O).
As with previous models, communication with Yokogawa's DCS (CENTUM) is supported. This is ideal for DCS backup in chemical plants and other applications requiring extreamly high reliability.
Applicable Models: YS1700,YS1500,YS1350,and YS1360
With peer-to-peer communication, up to 32 YS1700 can be connected interchangeably. Four of the connected instruments can each output 4 points of analog data and 16 points of status data.
This makes data exchange and I/O sharing possible since all instruments under peer-to-peer communications can read all data (16 analog and 64 status data).
|Maximum no. of connections||32|
|No. of receiving units||32|
|No. of transmitting units||4|
|Transmitted data||4 analog and 16 status data per transmitting YS1700|
|Communication interval||200 ms average (not synchronized to the control computation interval)|
Simplifies tuning when starting up or changing the process unit under control.
Setpoint filter (SVF)
Can optimize tracking with changes in set-points. Also can maintain optimum responsiveness to disturbances.
The YS1700/YS1500’s six DI/DO terminals can be used for both input and output.
Programmable function key
With a user program, the program function key (PF key) on the instrument’s front panel can be used as an ON/OFF switch for self-tuning, or as a Start button for sequence operation.
PID is an acronym for proportional band, integral and derivative. This control action allows a measurement (process variable) to be controlled at a desired set point by continuously adjusting a control output. These control parameters act on the error or deviation between set point and process variable.
In district heating/cooling and other systems, signals from flow meters can undergo temperature compensation in a totalizer to measure usage of warm water and other quantities. Here we give an example of how to perform temperature compensation of flow using the YS1700 Single Loop Controller in place of a dedicated totalizer.
To technology in iron & steel industry is continuously improved to obtain the best possible performance. The improved plant performance gives rise to the higher quality improvement and lower cost, and simultaneously environmental friendly plant operation.
Most SLPC and YS170 controllers in the field contain a custom program stored on an EPROM in the case of the SLPC and in NVRAM in the case of the YS170. When upgrading from an SLPC or YS170 to a YS1700, it is necessary to either rewrite the program in YS1700 language or convert the program from SLPC or YS170.
Continuous technology improvement is ongoing in the pulp & paper industry to obtain the best possible performance. The improved plant performance translates to the higher quality improvement and lower cost, and simultaneously environmental friendly plant operation.
Automated control of industrial boilers is an excellent application for YS1700 microprocessor-based loop controllers. These instruments can be programmed to perform the operations of plant master, boiler master, fuel and air control with oxygen trim and drum level/feedwater control.
The power plant for a small town has a single, coal fired boiler controlled by Bailey SLC controllers. Concerned about support issues for the aging controllers, the power plant initiated a control upgrade project.
YS1000 Series instruments can accept ONE direct input when a signal conditioning option is specified. The direct input replaces one of the non-isolated 4 to 20mADC (using a 250Ω shunt resistor) or 1 to 5VDC inputs. YS1700 can accept five analog inputs. YS1500 can accept four and YS1310, YS1350, YS1360 can accept two analog inputs. In all cases, one input can be signal conditioned.
The boiler combustion control system is designed to maintain a proper air/fuel mixture under varying load conditions and within safe limits. The system should provide nearly complete fuel combustion as efficiently as possible. Discussions here are limited to oil and/or natural gas fired industrial boilers.
Steam drum level control is necessary to add makeup water as steam is delivered into the header and to the associated process equipment. The system should control the drum level at a specific set point while compensating for varying steam demands and drum pressures. For a given volume of steam and blowdown leaving the steam drum, an equal amount of water should replace that inventory.
The YSS1000 setting software (hereinafter referred to as the YSS1000) is package software to configure the functions of the YS1000 series (hereinafter referred to as the YS1000) devices. Writing and reading of parameters and user programs of the YS1000, and PID tuning and monitoring of user programs can be performed through the use of communication.
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