Pilz PNOZ mm0p 24VDC - Manual (Page 5)

Content
Operating Manual PNOZmulti communication interfaces
1001154-EN-13
5
5.4 Communication procedure 78
5.5 Telegram structure 79
5.5.1 Header 80
5.5.2 Usable data 80
5.5.3 Information data 80
5.6 Usable data 81
5.6.1 Virtual inputs (Input Byte 0 ... Input Byte 15) 81
5.6.1.1 Mask (Mask Byte 0 ... Mask Byte 15) 81
5.6.1.2 Watchdog 81
5.6.2 Virtual outputs (Output Byte 0 ... Output Byte 15) 81
5.6.3 LED status 82
5.6.4 Tables 82
5.7 Requests 82
5.7.1 Send virtual inputs to the PNOZmulti 83
5.7.2 Send virtual inputs to the PNOZmulti, request state of the virtual outputs
and LED status from the PNOZmulti 84
5.7.2.1 Control Byte (Byte 40) 85
5.7.3 Request state of virtual inputs and outputs from PNOZmulti 86
5.7.4 Send data from the PNOZmulti in table form 87
5.7.5 Send input and output data (cf. fieldbus communication) 88
5.7.5.1 Input data (to the PNOZmulti) 88
5.7.5.2 Output data (from the PNOZmulti) 89
5.7.5.3 Control Byte (Byte 5) 90
5.8 Troubleshooting 91
5.8.1 Request format does not meet specifications 91
5.8.2 Error while executing a request 91
Section 6 Modbus/TCP 93
6.1 System requirements 93
6.2 Modbus/TCP - Basics 93
6.3 Modbus/TCP with PNOZmulti 94
6.4 Data areas 95
6.4.1 Overview 95
6.4.2 Function codes 95
6.4.3 Data transfer limits 96
6.4.4 Assignment of data areas 97
6.4.4.1 Virtual inputs 97
6.4.4.2 Control Register 98
6.4.4.3 Virtual outputs 99
6.4.4.4 LEDs 99
6.4.4.5 Configuration 100
6.4.4.6 State of the inputs from the base unit and expansion modules 102
6.4.4.7 State of the outputs from the base unit and expansion modules 104
6.4.4.8 LED status 105
6.4.4.9 Diagnostic word, element types 108
6.4.4.10 Current state of the virtual inputs 114
6.4.4.11 Current states of the virtual inputs for the safe Ethernet connection 115