Multiplexing communication system and substrate working machine

2:

• The multiplexing communication system according to claim 1,
• wherein the multiple data include a detection signal that is output from a sensor element and an encoder signal that is output from an encoder which detects displacement of an electromagnetic motor.

3:

• The multiplexing communication system according to claim 2,
• wherein the receiving side includes notifying means for notifying a drive control section that drive-controls the electromagnetic motor according to the encoder signal, of an activation timing at which the drive control section is activated, and
• wherein the notifying means notifies the drive control section of the activation timing, based on detection of at least one of a state where a communication line between the multiplexing means and the restoration means is established through the wired communication, and a state where an activation delay time, which is a delay time set to start from a point in time when the multiplex means and the restoration means are activated, has elapsed.

4:

• The multiplexing communication system according to claim 3,
• wherein the encoder outputs the encoder signal at the data transfer rate using synchronous communication, and
• wherein the receiving side includes a buffer section in which the encoder signals that are restored by the restoration means from the multiplex data string are accumulated by an amount of data that is set in advance in accordance with a data transfer rate in the wired communication and a data output interval time in the synchronous communication and then from which the accumulated encoder signals are output to the drive control section through the synchronous communication.

6:

• The multiplexing communication system according to claim 3,
• wherein the drive control section and the encoder have different communication protocol from each other, and
• wherein, as the communication protocol conversion processing, the processing circuit converts the encoder signal that is output by the encoder in a format of the communication protocol for the encoder, into a format of the communication format for the drive control section.

7:

• The multiplexing communication system according to claim 1,
• wherein the wired communication is communication in which the multiplex data string is transferred through at least one communication medium of an optical fiber cable and a LAN cable.

9:

• The multiplexing communication system according to claim 1,
• wherein the transmitting side has an amplification section that amplifies an output of a height sensor which measures a height of a target object, and
• wherein the amplification section is built into a multiplexing device that has the multiplexing means.

10:

• The multiplexing communication system according claim 1,
• wherein the processing circuit includes an IP core that is a programmable logic device into which a circuit is built based on configuration information, that is a digital interface of an imaging device that includes the imaging element or is a digital interface of an image board that processes an output of the imaging element, and that inputs or outputs the output of the imaging element in a data format of communication protocol for the digital interface.

11:

• The multiplexing communication system according to claim 2,
• wherein, in the multiplex data string, the encoder signals are bit-allocated at multiple bit positions that correspond to the multiple encoder signals, respectively, and
• wherein the transmission side includes a frame setting means for setting a bit value of the bit position which corresponds to a position into which the encoder signal is not input, for a non-processing target, among the multiple bit positions, in a case where a bit width of the bit position in which the bit-allocation takes place is greater in comparison to the number of inputs of the encoder signal.

12:

• The multiplexing communication system according to claim 11, wherein
• a movable section that has the electromagnetic motor and the encoder and is detachably connected to the multiplexing communication system, and
• wherein the frame setting means sets a bit value of the excessive bit position for the non-processing target according to the number of the inputs of the encoder signal that are input from the encoder which is included in the movable section connected to the multiplexing communication system.

13:

• A substrate working machine, which performs a mounting operation with a workpiece being held with a movable section,
• wherein data concerning the mounting operation is transferred by the multiplexing communication system according to claim 1.

14:

• The substrate working machine, according to claim 13,
• wherein the movable section has an electromagnetic motor and an encoder that detects displacement of the electromagnetic motor, and
• wherein a drive control section that receives an encoder signal which is output from the encoder and is transferred through the wired communication in the multiplexing communication system, and that drive-controls the electromagnetic motor is included in a stationary section.

15:

• The substrate working machine, according to claim 14,
• wherein electric power that is supplied from the drive control section to the electromagnetic motor of the movable section is supplied through a power source line that is provided separately from the wired communication in the multiplexing communication system.

18:

• A substrate working machine, which performs a mounting operation with a workpiece being held with a moving section,
• wherein the multiplexing means is provided on the movable section, and
• wherein data concerning the mounting operation is transferred by the multiplexing communication system according to claim 17.