Fuji Corporation

Kazuhiro Asada

Hidetoshi Kawai

Masafumi Amano

Tsutomu Kunihiro

Toshiaki Kondo

Katsushi Ota

In a communication system, multiple nodes sequentially transmit a data frame along a communication direction and can read and write data from and to the data frame, and includes a specific node requiring data in the data frame transmitted by another network. In one network of two networks connected to a common bridge, a specific node is disposed within a half circumference of disposition positions of the multiple nodes on the upstream side in the communication direction with respect to the bridge, and in the other network, the specific node is disposed within a half circumference of the disposition positions of the multiple nodes on the downstream side in the communication direction with respect to the bridge.

Communication system and work apparatus

A control system of a tape feeder that includes a reel on which is wound component supply tape, and a tape feeding device configured to draw out the component supply tape from the reel to a component pickup position, the control system including a sensor configured to detect information relating to a remaining amount of the tape on the reel; and a motor control section configured to change an operation parameter of a motor that is a drive source of the tape feeding device based on the tape remaining amount information detected by the sensor. Specifically, the motor control section changes the operation parameter of the motor so as to reduce the motor torque as the tape remaining amount on the reel decreases, based on the tape remaining amount information detected by the sensor.

Control system of tape feeder for component supply from reel

In the case where multiple individual work devices respectively executing a sequence of multiple tasks are controlled in an integrated manner by an integrated control device, log analysis among the multiple individual work devices is difficult. One of four individual work devices transmits time inquiry signal to main integrated control device via serial communication cable. Main integrated control device returns the time at time at which time inquiry signal was received to the one of four individual work devices to which time inquiry signal was transmitted. One of four individual work devices receives a reply from main integrated control device at time, adds the communication time to the time at time, and calculates the time at time. One of four individual work devices starts the calculation of the in-device time from calculated time as a starting point. One of four individual work devices logs based on in-device time.

Work device and time-measuring method of work device

A component mounter which picks components which are stored in tape and supplied from a component supply device by a component picking device and mounts components on a board which is conveyed by a board conveyance device including a waste box which stores the cut tape after the components are picked, a scraping out device which can scrape the tape out of the waste box, and a control device which controls scraping out the stored tape by the scraping out device when the tape is stored in the waste box to a predetermined amount.

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Tokai, Japan

Kazuhiro Asada