Hi Ying Huang
You're welcome, but sorry, I don't know anything about PLC.
You should start a new question for Tech-talk, title it "Howto connect
to Siemens 1200" .
Best regards
Peter
On Thu, 30 Aug 2018 at 04:28, 成威黄瀛 <[email protected]> wrote:
>
> Hi, Peter,
> One more question, as I need to connect to PLC too. Could you also give me a guideline, or where I can find related documents on how to connect to PLC? Take Simens 1200 for example.
> Thanks.
>
> ------------------
> 黄 瀛
>
> *****开票信息*****
> 名称:绵阳成威实验室工程技术有限公司
> 税号:915107 0455 1000 912T
> 注册地址:四川省绵阳市游仙区仙人路一段32号
> 开户银行:中国银行绵阳游仙支行
> 账号:1279 5046 6834
> *****送货信息*****
> 地址:四川省绵阳市游仙区游仙镇仙童街一号,电商谷
> 联系人:黄瀛
> 电话:18784065819
> ************************************************
> Ying Huang
> Chengwei Lab&Engineering Company
> No1 Xiantong Street, Youxian Area, Mianyang City, Sichuan Province, China
> 86 0816 2967213
>
>
>
> ------------------ 原始邮件 ------------------
> 发件人: "Peter.Milne"<[email protected]>;
> 发送时间: 2018年8月30日(星期四) 凌晨0:26
> 收件人: "成威黄瀛"<[email protected]>;"tech-talk"<[email protected]>;
> 主题: Re: the same question to "a simple question about pyepics"
>
> Hello Ying Huang
>
>
>
> On 29/08/18 17:10, 成威黄瀛 wrote:
> > Plus, this is just a beginning of mine and I do not connect any device on my laptop. I just try it on a Virtual Mechine and follow the easiest example hoping to get the entrance.
> > Hope to get feedback. Thanks in advance.
> > -------------------------------------------------------
> >
> > Hi,
> > I am just facing the same question with that email "a simple question about pyepics".
> > OS is redhat6, python is 2.7.6
> > Here is what I tried:
> > 1, [root@localhost linux64]# echo $PYEPICS_LIBCA
> > /test/base/lib/linux-x86_64/libca.so
> > 2, [root@localhost linux64]# echo $EPICS_BASE
> > /test/base
> > 3, [root@localhost linux64]# echo $EPICS_HOST_ARCH
> > linux-x86_64
> > 4, in python I am typing
> > Python 2.7.6 (default, Aug 28 2018, 07:42:21)
> > [GCC 4.4.7 20120313 (Red Hat 4.4.7-16)] on linux2
> > Type "help", "copyright", "credits" or "license" for more information.
> >>>> from epics import caget
> >>>> m1 = caget('root:ai2')
> > cannot connect to root:ai2
> > 5, PV named 'root:ai2' does exist
> > iocRun: All initialization complete
> > ## Start any sequence programs
> > #seq sncExample, "user=root"
> > epics> dbl
> > root:xxxExample
> > root:calcExample
> > root:calcExample1
> > root:calc1
> > root:calcExample2
> > root:calc2
> > root:calcExample3
> > root:calc3
> > root:subExample
> > root:aSubExample
> > root:compressExample
> > root:aiExample
> > root:aiExample1
> > root:ai1
> > root:aiExample2
> > root:ai2
> > root:aiExample3
> > root:ai3
> >
> >
> >
> > What can I do then?
>
> I would try the standard epics Channel Access CA tools eg
>
> https://epics.anl.gov/base/R3-14/12-docs/CAref.html#caget
>
> from the command line
> caget root:ai2
>
> or
>
> camonitor root:ai2
>
> If that doesn't work, your problem is not pyepics, but CA in general.
> Could be firewall or name resolution issue.
>
> https://epics.anl.gov/base/R3-14/12-docs/CAref.html#firewall
> https://epics.anl.gov/base/R3-14/12-docs/CAref.html#EPICS
> EPICS_CA_ADDR_LIST=ip-addr
>
> Cheers
>
> Peter
>
>
> >
> >
> >
> >
> > ------------------
> > 黄 瀛
> >
> >
> > *****开票信息*****
> > 名称:绵阳成威实验室工程技术有限公司
> > 税号:915107 0455 1000 912T
> > 注册地址:四川省绵阳市游仙区仙人路一段32号
> > 开户银行:中国银行绵阳游仙支行
> > 账号:1279 5046 6834
> > *****送货信息*****
> > 地址:四川省绵阳市游仙区游仙镇仙童街一号,电商谷
> > 联系人:黄瀛
> > 电话:18784065819
> > ************************************************
> >
> > Ying Huang
> > Chengwei Lab&Engineering Company
> > No1 Xiantong Street, Youxian Area, Mianyang City, Sichuan Province, China
> > 86 0816 2967213
> >
>
>
> --
> Peter Milne
> Director of Sales
> www.d-tacq.com
--
Peter Milne, Director of Sales
www.d-tacq.com
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