[volt-nuts] How to wire a serial cable for a Solartron 7151

[Fabio Eboli]

You could try RealTerm, I've used it with win XP,
it permits to have much more control on signals and data.

Fabio.

"David C. Partridge" <david.partridge at perdrix.co.uk> ha scritto:

> Yeah could be the bit order in the bytes, but how to tell one or the  
> other to accommodate that?  If I need a different terminal program  
> then please point me in the right direction.
>
> I thought serial comms always sent the bits of a byte in the same  
> order (high bit first I think).
>
> Dave
> -----Original Message-----
> From: volt-nuts-bounces at febo.com [mailto:volt-nuts-bounces at febo.com]  
> On Behalf Of m k
> Sent: 14 April 2012 19:06
> To: volt-nuts at febo.com
> Subject: Re: [volt-nuts] How to wire a serial cable for a Solartron 7151
>
>
> Hi Dave,
>
> bigendian-littlendian problem perhaps?
>
> MK
>
>> From: david.partridge at perdrix.co.uk
>> To: volt-nuts at febo.com
>> Date: Sat, 14 Apr 2012 18:19:58 +0100
>> Subject: Re: [volt-nuts] How to wire a serial cable for a Solartron
>> 7151
>>
>> Hmmmm I may be getting somewhere. but not quite sure where.
>>
>> I swapped Tx and Rx, RTS and CTS so I had a very basic null-modem  
>> connection.
>>
>> With the DIP switches set for 9600 baud, Space Parity and 2 stop bits.
>>
>> I set Hyperterminal up for 9600,8,S,2
>>
>> When I connect I now get output from the meter, but it is garbage.
>>
>> Knpxpywpp`@6`
>> knpxtwvyp@`@
>> KNpxxtvtp``6@
>> kNpyrpqtp@`6@
>> kNpyututp@`@
>> KNpyypvup`@6`
>> KNqpruuyp`@6`
>> kNqpvpwwp``6@
>>
>> If I set hyperterminal to any other settings I get nothing at all.
>>
>> This almost sounds like the problem that people who use TTL serial  
>> have with inverted logic levels.
>>
>> The problem is identical if I try with another 7151.
>>
>> Dave
>> -----Original Message-----
>> From: volt-nuts-bounces at febo.com [mailto:volt-nuts-bounces at febo.com]
>> On Behalf Of David C. Partridge
>> Sent: 14 April 2012 14:24
>> To: 'Discussion of precise voltage measurement'
>> Subject: [volt-nuts] How to wire a serial cable for a Solartron 7151
>>
>> I'm trying to communicate with a Solartron 7151 using RS232 and failing.
>>
>> I've made up a cable DB9 to DB15 wired straight through based on  
>> the information on page 6.6 of the user manual which shows the pin  
>> assignments of the DB15 connector on the back of the DMM.
>>
>> DB9 Pin 1 DCD not connected
>> DB9 Pin 2 RxD to DB15 Pin 3
>> DB9 Pin 3 TxD to DB15 Pin 2
>> DB9 Pin 4 DTR to DB15 Pin 15
>> DB9 Pin 5 GND to DB15 Pin 7
>> DB9 Pin 6 DSR not connected
>> DB9 Pin 7 RTS to DB15 Pin 4
>> DB9 Pin 8 CTS to DB15 Pin 5
>> DB9 Pin 9 RI  not connected
>>
>> I didn't connect DB15 Pin 10 to anything, as there is nothing on a  
>> DB9 that provides Receive Clock - all my serial ports are DB9.
>>
>> Unfortunately it doesn't work.
>>
>> If anyone knows how it should be wired, please could they let me know?
>>
>> Thanks
>> Dave
>>
>>
>> _______________________________________________
>> volt-nuts mailing list -- volt-nuts at febo.com To unsubscribe, go to
>> https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts
>> and follow the instructions there.
>>
>>
>> _______________________________________________
>> volt-nuts mailing list -- volt-nuts at febo.com To unsubscribe, go to
>> https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts
>> and follow the instructions there.
>
> _______________________________________________
> volt-nuts mailing list -- volt-nuts at febo.com To unsubscribe, go to  
> https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts
> and follow the instructions there.
>
>
> _______________________________________________
> volt-nuts mailing list -- volt-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts
> and follow the instructions there.
>



----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.