Search found 74 matches

by S.Michaelsen
Wed 19. Aug 2015, 13:25
Forum: PCAN-Wireless Gateway
Topic: delay in message transfer when using TCP
Replies: 4
Views: 7367

Re: delay in message transfer when using TCP

Hello,

that depends on your use case. TCP in normal mode might be the best option in most cases. Usually the latency will decrease in case of steady CAN traffic. If you need a low latency and you're in an environment that allows you to use UDP that might be the better option.

BR,
Stephan
by S.Michaelsen
Wed 19. Aug 2015, 11:13
Forum: PCAN-Wireless Gateway
Topic: delay in message transfer when using TCP
Replies: 4
Views: 7367

Re: delay in message transfer when using TCP

Hello, in principle delays could have different reasons when using TCP. At first the TCP stack usually caches some data and sends it with some delay in a single packet. You can disable that behavior if you set the “tcpdelay“ option of the according route in the configuration file to “0” manually. No...
by S.Michaelsen
Thu 29. Jan 2015, 15:21
Forum: PCAN-GPRS Link
Topic: GPRS Modem Firmware
Replies: 6
Views: 7604

Re: GPRS Modem Firmware

Hi Ashwin, the reset comand is send in rest state of the statemachine if data channel is closed. This state is entered if: - errors occurred within the state machine - unspecified error from modem - peer has closed the connection (+WIPPEERCLOSE) - CME ERRORs: 811,842 and others then 10, 515, 812, 84...
by S.Michaelsen
Thu 29. Jan 2015, 12:58
Forum: PCAN-GPRS Link
Topic: GPRS Modem Firmware
Replies: 6
Views: 7604

Re: GPRS Modem Firmware

Hi Ashwin,

unfortunately it is not, but there is an example file contained in delivered sources that could be a starting point for a reimplementation of functions likely to the ones contained in the lib (OwnGPRS.c).

Regards,
Stephan
by S.Michaelsen
Wed 28. Jan 2015, 16:24
Forum: PCAN-GPRS Link
Topic: GPRS Modem Firmware
Replies: 6
Views: 7604

Re: GPRS Modem Firmware

Hi Ashwin,

there is no proprietary firmware from us running on the modem. It runs a default Open AT firmware. You could get some further documentation and other stuff from sierra wireless (http://www.sierrawireless.com/ - registration required).

Regards,
Stephan
by S.Michaelsen
Tue 13. Jan 2015, 08:32
Forum: PCAN-Ethernet Gateway DR
Topic: TCP connection from PCAN to server application
Replies: 6
Views: 6581

Re: TCP connection from PCAN to server application

Hi,

ATM the reconnection is triggered by the first incoming CAN message on the CAN channel that belongs to the route. It seams as if this first frame is not sent to the peer in some cases after it has triggered the connection establishment.

Regards,
Stephan
by S.Michaelsen
Wed 20. Aug 2014, 12:54
Forum: PCAN-Ethernet Gateway DR
Topic: Using the GATEWAY as aternative for CAN card.
Replies: 1
Views: 3209

Re: Using the GATEWAY as aternative for CAN card.

Hi,

you could only receive and send CAN messages via network sockets but you could not change the settings of the gateway. You'd have to configure it via the web interface.

Best Regards,
Stephan Michaelsen
by S.Michaelsen
Mon 3. Mar 2014, 15:11
Forum: PCAN-GPRS Link
Topic: Starting overview
Replies: 5
Views: 7160

Re: Starting overview

Hello,

the binary is the file that is created during build process, the sql script is present but it has a date as prefix and the tar archive can be found at https://dev.mysql.com/downloads/connect ... #downloads.
by S.Michaelsen
Mon 3. Mar 2014, 11:56
Forum: PCAN-GPRS Link
Topic: Starting overview
Replies: 5
Views: 7160

Re: Starting overview

Hello, please note that the example and the according guide was written for 10.04 version and you might need other versions of some libs etc. if you are using another version. It does not matter which tool do you use to create or maintain you database. For usage of the tools you'll to have a look at...
by S.Michaelsen
Thu 13. Feb 2014, 08:24
Forum: PCAN-GPRS Link
Topic: few simple question
Replies: 1
Views: 3327

Re: few simple question

Hello Greg,

1) The MMC lib functions can not work with SDHC cards so the card size is limited to 2GB
2) Yes you simply need to unpack your data from this structure
3) No, there are no other compatible modems
4) You are right. The libs are only delivered precompiled

Best Regards,
Stephan