The main products

Spare parts spare parts, the DCS control system of PLC system and the robot system spare parts,

Brand advantage: Allen Bradley, BentlyNevada, ABB, Emerson Ovation, Honeywell DCS, Rockwell ICS Triplex, FOXBORO, Schneider PLC, GE Fanuc, Motorola, HIMA, TRICONEX, Prosoft etc. Various kinds of imported industrial parts

Products are widely used in metallurgy, petroleum, glass, aluminum manufacturing, petrochemical industry, coal mine, papermaking, printing, textile printing and dyeing, machinery, electronics, automobile manufacturing, tobacco, plastics machinery, electric power, water conservancy, water treatment/environmental protection, municipal engineering, boiler heating, energy, power transmission and distribution and so on.

WATLOWANAFZE PPC-TB50 module

INNIS01 Network Interface The INNIS01 module is the communication front end for the computer interface. This section provides an overview of its operating theory. Exception Reports Symphony devices establish exception reporting routes for process inputs (points). Some examples of exception report parameters are high/low alarm limits, minimum/maximum report time intervals, and percent of change in span. When a point changes more than a given parameter, or an alarm state changes, the module generates an exception report. The INICT03 module packages together exception reports having a common node destination. Packing places all exception reports for a destination (or multiple destinations) into one message and the INNIS01 module sends them to other Cnet nodes as a single message. This process reduces the number of transmissions required, and adjusts the message size for maximum Cnet network efficiency. Exception reports can have data values in the following formats: digital, analog, and status report. Exception reports are time-stamped to reflect their processing sequence. The maximum and minimum report time parameters insure that an exception report is generated for static or rapidly changing data. The minimum report time parameter controls the quantity of exception reports a single rapidly changing point generates. The maximum report time parameter generates a periodic report of data items that do not change. NOTE: If a point goes into or out of alarm, the time parameters are ignored and the value is reported immediately. Minimum and maximum exception report times are set through function code 82.

Time-Synchronization

 The time-synchronization message is a high priority broadcast type of message. The INNIS01 module services this message type immediately. Time-synchronization provides a common system time base to be used for sequencing exception reports, accessing trend data, and display on a human system interface such as a workstation running Conductor NT or Conductor VMS software.A message that contains data for multiple destinations is a multicast message. This message can have from one to 64 destinations. NIS Poll The NIS poll message is a single destination message. The INNIS01 module uses this message type to request the operational status of another node. Message Format Messages exist as frames of information. Each frame consists of a message control field that follows an information field. The information field contains the message data. It can consist of multiple messages and vary in size to a maximum of 1,500 bytes. The control field contains time of origination, sequence, source, size, circulation count, message type, destinations, and checksum. The INNIS01 module increments the circulation count field of all incoming messages. When a message count field exceeds 255, the message is discarded. This is useful in keeping retry and spurious message traffic to a minimum. The INNIS01 module uses the message type to determine how to process the message. The checksum and cyclic redundancy check code fields verify data integrity