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Lee_H

Mitsubishi Q02H to Proface GP2600

11 posts in this topic

Hi all, I have a bit of problem that i am hoping someone can help me solve, currently i am fortunate enough to have a test rig/training setup comprising of; Mitsubishi Q312B rack Mitsubishi Q02HCPU Mitsubishi QJ71C24N RS232/422 card occupying slot 0 GP2600 HMI connected via the 422 terminals on QJ71C24N Self made connection lead with the configuration GP2600 PLC P7 - SG - SG P9 LINKED TO 10 P10 - RDA - SDA P11 - SDA - RDA P15 - SDB - RDB P16 - RDB - SDB P18 & 19 JOINED P20 & 21 JOINED I have downloaded all the available manuals from the Proface/Otasuke support site and have worked through them however i am still having difficulty in getting any communication between the GP2600 and the QJ71C24N and i am waiting (3 days now) for a response from Proface. The settings i have been trying to use are as follows; Device types GP2600 Mitsubishi-MELSEC Q CPU Extend SIO Type - NONE Communications settings COMMS RATE - 19200 DATA - 7 BITS STOP BIT - 2 PARITY - EVEN DATA FLOW - ER TYPE UNIT - 0 4 WIRE Which if my interpretation of the manuals is correct gives me the following switch settings for GX-Developer. Comms rate 19200 = 07h Switch 1 & 3 Transmission settings B0 Operation setting Independant(0),Linked(1) = 0 B1 Data bit 7(0),8(1) = 0 B2 Parity bit No(0),Yes(1) = 1 B3 Odd(0),Even(1) Parity = 1 B4 stop bit 1(0),2(1) = 1 B5 sum check code No(0),Yes(1) = 1 B6 Write during run No(0),Yes(1) = 0 B7 Setting modifications No(0),Yes(1) = 1 Above settings give BCh Combined gives 07BCh for switch 1 & 3 Switches 2 & 4 Communication protocol Default value of 0h Switch 5 - Station number Default value of 0h Despite all of the above i still recieve 'PLC Not Responding 02:FE' I have been struggling with this for several days now and assume i am missing something which once pointed out will be embarassing cheers and thanks Lee

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your logic sounds right, at least i don't see problem with it but what are the values of the terminators you use and how are you using them?

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Have only ever used a Proface once (with an Allen Bradley) and decided that I never wanted to use one again. Hardware was OK, but manuals and support were somewhat lacking to say the least. This is probably of no use, but I can't recall ever setting up a serial link with a Mitsubishi that used two Stop bits in the setup, it's always been one Stop bit...... but then again, I have yet to progress to the Q series.

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this is what I've found:

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Sorry for the delay in replying, thanks for all the pointers .... i think i see what i've done wrong, i've missed the termination resistors but i was buggered if i could see why it wasn't working and felt it had to be simple will try this Monday/Tuesday and let everyone know. Cheers and thanks,

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OK then further to the previous response ... i have now fitted the resistors and still suffer from the same issues The GP26 still displays an 02:FE error with PLC not responding and the QJ71C24 card shows the following; RUN light = ON NEU light = ON (both channels) RD light = flashing SD light = OFF (never even blinks) I've re-checked all the settings, re-calculated the switch settings for GX-Developer, cleared all PLC & GP memories and started from scratch. Using GXDEV's system monitor i have confirmed the switch settings in the comms card and ensured no errors are reported. I have even altered it to 8 bits,no parity,1 stop bit,19200 and still nothing. To say i am stumped is something of an understatement, i am only using the GP screen because i have a few spare though i am beginning to wonder if i should dump it for a GOT but i refuse to give up. If anyone has any further pointers i'll gladly follow them ....... Thanks, Lee

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Hi all, I think you should use GP230-IS11-O of Pro-face to connect GP and PLC. If you do not use, I am not sure they do not work. GP_PLC.bmp

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i've never seen it, but that should be just a cable. check page 14 for example http://www.kwangwon.co.kr/customer/pds_fil...51221102311.pdf also what kind of cable you use? are you using proper pairs? wires going to SDA/SBD must be one twisted pair, wires going to RDA/RDB must be other......... Also read the note about jumping pins 9 and 10 on PG side

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Hi, Firstly thanks to all who responded I have now got it successfully working and have posted a webpage up at http://www.lhalls.co.uk/gp26-mitsiq.htm Note there is nothing else on the site at the moment as it was all being worked upon but i thought i'd take a few screen shots and give a reasonable description for others to reference, i'll create a pdf file when i have time and upload here too. Briefly i got it working by setting it up as follows; On the Gp2600 side choose Mitsubishi MELSEC QnA(LINK) as your type and set-up the comms as 4 line, 19200, 7 data bits, even parity, 2 stop bits & DTR/ER control. On the PLC side set up the switches as SWITCH 1 & 3: 07FC SWITCH 2 & 4: 04 SWITCH 5: 0 The connecting cable should be twisted pairs but i managed to get it working with normal screened cable however ensure the resistors are correctly utilised and note that on my original cable i had pins 9 & 10 connected but on the working version they are not. P7 - SG - SG P10 - RDA - SDA P11 - SDA - RDA P15 - SDB - RDB P16 - RDB - SDB P18 & 19 JOINED P20 & 21 JOINED On the plc side connect SDA & SDB with a 330ohm resistor and also RDA & RDB. On the GP2600 side of the lead connect pins 10-RDA & 16-RDB together with a 330ohm resistor. Eventually if all is set-up correctly you will see both SD & RD lights flashing on CH2 of the QJ71 card. Hopefully the above helps some other poor sole struggling with it, one recommendation i would have is look into getting GX Configurator as this should simplify your settings calculations and never forget the importance of resistors ...... Regards, Lee

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congratulation. sounds like proper termination did the trick (i see you have removed the connection between pins 9 and 10 on PG side)

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yeah :( proper termination and a change in the hex switch settings, i had the termination on the plc side originally but took it off because it did not work, then posted here and re-added it. The key was the one on the hmi side and then a change in parameter settings. Thanks again for patience and pointers. Lee

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