3
Table of Contents
About the Book. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Part I General information about the COMM module library . . 7
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Chapter 1 Parameterizing functions and function blocks . . . . . . . . . . . . .9
Parameterizing functions and function blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Part II EFB descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Chapter 2 CREAD_REG: Continuous register reading. . . . . . . . . . . . . . .15
Chapter 3 CREADREG: Continuous register reading. . . . . . . . . . . . . . . .21
Chapter 4 CWRITE_REG: Continuous register writing. . . . . . . . . . . . . . .27
Chapter 5 CWRITREG: Continuous register writing . . . . . . . . . . . . . . . . .33
Chapter 6 IBS_READ: Reading variables via INTERBUS . . . . . . . . . . . . .39
Chapter 7 IBS_SEND_REQ: Diagnostic query on the
INTERBUS Master 140 NOA 622 00. . . . . . . . . . . . . . . . . . . . . .41
Chapter 8 IBS_WRITE: Writing variables to INTERBUS PCP nodes . . . .43
Chapter 9 ICNT: Connect/disconnect an INTERBUS communication. . .45
Chapter 10 ICOM: Data transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Chapter 11 MBP_MSTR: Modbus Plus Master . . . . . . . . . . . . . . . . . . . . . .59
Chapter 12 MODBUSP_ADDR: Modbus Plus Address. . . . . . . . . . . . . . .105
Chapter 13 PORTSTAT: Modbus Port Status . . . . . . . . . . . . . . . . . . . . . .111
Chapter 14 READ_REG: Read register. . . . . . . . . . . . . . . . . . . . . . . . . . . .113
