Remote I/O Network - manual reference:

Transcription

1 Remote I/O Network - manual reference: Remote IO network Sep (sh080124h.pdf pdf)

2 Remote I/O Network - Facts Link devices: points for the link relay (LB) points for the link register (LW) Up 4096 input/output points can be set per remote I/O station. Up to 1600 bytes can be set for the link points between the remote master station and remote I/O station. Up to 2000 bytes can be set for the link points between the multiplexed remote master station and multiplexed remote sub-master station. (only QnPH PLCs!!!)

3 Remote I/O Network - Optical loop 25 Mbaud, total length 30km

4 Remote I/O Network - Coaxial Bus 10 Mbaud, total length 500m

5 Multiplexed remote I/O network (QnPHCPU Only)

6 Setting items - Remote Master

7 Remote I/O Network - Remote I/O Station

8 Precautions when Configuring the System (1) Take the following points into consideration when configuring a remote I/O net system. (1) Remote I/O networks and PLC to PLC networks cannot be mixed on the same MELSECNET/H network. Always configure separate networks. (2) Only MELSECNET/H network modules can be connected to a MELSECNET/H remote I/O network. They cannot be mixed with MELSECNET/10 network modules. (3) It is possible to configure up to four MELSECNET/H networks by combining remote I/O and PLC to PLC networks per CPU module (Q02CPU/Q02HCPU/Q06HCPU/ Q12HCPU/Q25HCPU/Q12PHCPU/Q25PHCPU).

9 Precautions when Configuring the System (2) The shown CPU modules and master modules are suitable for master modules.

10 Precautions when Configuring the System (3) The following Q-series modules can be used with remote I/O stations. Note that there are restrictions for the following modules.

11 Remote I/O Network - Example for Digital I/Os 1) When X0 for the input module for the remote I/O station is set to on, the X1000 for the remote master station is set to on. 2) When Y1010 for the remote master station is set to on, the Y10 for the remote I/O station output module is set to on.

12 Remote I/O Network - Common parameter The common parameters set the LB, LW, LX and LY cyclic transmission range that allows sending and receiving between remote master stations and remote I/O stations in a network. Common parameter settings only need to be set for the remote master station.

13 Remote I/O Network - Network refresh parameters The network refresh parameters are used to set the ranges of the link devices (LB/LW/LX/LY) of the network module to be transferred to the devices of the CPU module (X, Y, M, L, T, B, C, ST, D, W, R, and ZR), so that the link devices can be used with the sequence programs. By eliminating the network refresh of those link devices that are not used by the sequence programs, the scan time can be reduced.

14 Example configuration with two Demoracks Master, Q02H CPU + QJ71BR11 Remote I/O station, QJ72BR15 RG59 cable Slot No.: Terminal resistance: 75 Ohm Terminal resistance: 75 Ohm Slot No.: Power supply module C P U QJ71BR11 0 QX80 20 QY10 30 Q64AD 40 Q64DA 50 Power supply module QJ72BR15 SPARE 0 QX80 20 QY10 30 Q64AD 40 Q64DA 50

15 PLC Parameter: I/O assignment Switch settings Switch settings Power supply module Slot No.: C P U QJ71BR11 0 QX80 20 QY10 30 Q64AD 40 Q64DA 50 Power supply module Slot No.: QJ72BR15 SPARE 0 QX80 20 QY10 30 Q64AD 40 Q64DA 50

16 Network parameter settings for the remote master station

17 Download of Master GX Developer project Having done all necessary settings as I/O assignment with dip switch settings network settings for MELSECNET/H remote Master PLC program for remote I/Os, download the project to the PLC and reset PLC.

18 Creating a new GX Developer project for Remote I/O Every remote I/O station has to have a PLC project as well! This project only consists of parameters!

19 Connection setup for the remote I/O station

20 Using intelligent utilities for AD/DA setup Slot No.: Power supply module QJ72BR15 SPARE 0 QX80 20 QY10 30 Q64AD 40 Q64DA 50 To enable D/A conversion, switch on Y251 - Y254 in the PLC program!

21 Using intelligent utilities for AD/DA setup Analogue Input module AD Analogue Output module DA

22 Using intelligent utilities for AD/DA setup WATCH OUT! Here comes a Pitfall... There is no possibility to write the intelligent parameter from within the utility! Instead, use the normal Online / Write to PLC... option!

23 To address the remote I/O station, you need: Digital inputs from the remote I/O station: Digital outputs to the remote I/O station: Analogue inputs from Remote I/O station: Analogue outputs to Remote I/O station: X220 - X20F Y230 - Y23F W100-W103 W000-W003