P7000 Tools not jogging 3rd party motor
I am trying to control a 3rd party stepper motor with P7000Tools but I can not get it to jog the motor.
Setup:
Pacific Scientific P70530 drive
MicroKinetics 23HT175 stepper motor (http://www.microkinetics.com/stepper_motors/23ht175.htm)
National Instruments 780099-01Serial Programming Cable for P70530 & P70360 Stepper Drives
tabletop variable power supply (at 30VDC and max amperage)
P7000Tools correctly finds the drive and I have the custom motor setup as:
If I "Send All" to the motor and them Probe it, the motor makes some noises at different frequencies. I also see the power supply incrementally increase in supply amerage. P7000Tools then tells me that the motor has successfully been probed. However, when I then try to jog the motor, nothing happens. I also notice that the motor gets very hot. Its at this point that I shut off the power supply. Any help would be greatly appreciated.
thanks,
jason
Solved!
Go to Solution.
tir38,
I found the following article and copied the text below. The second paragraph explains tooth count, and here's the link to the original: http://zone.ni.com/devzone/cda/tut/p/id/10638
Danaher Drives (P70530 and P70360)
Danaher refer to microstepping as step resolution. The step resolution can be configured through one of two methods. One is through the DIP switches on the side of the drives as shown in the P7000 Series Stepper Drives Getting Started manual on page 9. The other is through the Danaher P7000 Tools, a software interface to configure the hardware.
When configuring the drive using the P7000 Tools, verify that the Tooth Count is correct. This will be located under Stepper Motor»Properties. The tooth count is one fourth of the number of steps per revolution with no microstepping. If this number is not correct it can be changed in the Motor File Editor. Set the desired step resolution under Command»Command Signal Configuration»Step Resolution in Steps / Motor Rev. If the drive does not support the desired value it will coerce down to the nearest increment that is supported. All of the microstepping will then be configured on the drive.
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l_hash raw(2000);
l_checksum_md5 varchar2(2000);
l_checksum_md5_utf_8 varchar2(2000);
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Edited by: 972551 on Nov 21, 2012 12:18 PM
Edited by: sabre150 on Nov 21, 2012 11:06 PM
Moderator action : added [code ] tags to format properly. In future please add them yourself.>
I have a problem where the MD5 value from DBMS_CRYPTO does not match the hash value from 3rd party MD5 free tool (MD5 Checksum Calculator 0.0.5.58 or WinMD5Free v1.20) and also the MD5 hash value calculated by an ingestion tool where I am transferring files to. The MD5 hash value that the ingestion tool calculates is the same as the 3rd party MD5 free tools I have.
I found a thread on this forum that also had a similar issue so I copy/paste the java functions.
>
And in that thread (Re: MD5 HASH computed from DBMS_CRYPTO does not match .NET MD5 I provided the reason why DBMS_CRYPTO may not match hashes produced by other methodologies.
I have no idea why you copied and posted all of that Java code the other poster and I provided since code has NOTHING to do with the problem you say you are having. Thte other poster's question was how to write Java code that would produce the same result as DBMS_CRYPTO.
You said your problem was understanding why DBMS_CRYPTO 'does not match the hash value from 3rd party MD5 free tool ...'. and I answered that in the other forum.
>
The Crypto package always converts everything to AL32UTF8 before hashing so if the .NET character set is different the hash will likely be different.
See DBMS_CRYPTO in the PL/SQL Packages and Types doc
http://docs.oracle.com/cd/B28359_01/appdev.111/b28419/d_crypto.htm
If you look at the spec header for the DBMS_CRYPTO package it shows this note:
-- Prior to encryption, hashing or keyed hashing, CLOB datatype is
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package code sniippets:
declare
l_hash raw(2000);
l_checksum_md5 varchar2(2000);
l_checksum_md5_utf_8 varchar2(2000);
Begin
t_checksum := lower(RAWTOHEX(dbms_crypto.hash(src=>l_clob,typ=>dbms_crypto.hash_md5)));
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Thank You in advance
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Edited by: 972551 on Nov 21, 2012 12:45 PMThanks for the reply but my syntax is correct.
t_checksum := lower(RAWTOHEX(dbms_crypto.hash(src=>l_clob,typ=>dbms_crypto.hash_md5)));
The typ argument tells dbms_crypto what type of hash value to produce.
This is from the Oracle Docs:
Table 24-3 DBMS_CRYPTO Cryptographic Hash Functions
Name Description
HASH_MD4 Produces a 128-bit hash, or message digest of the input message
HASH_MD5 Also produces a 128-bit hash, but is more complex than MD4
HASH_SH1 Secure Hash Algorithm (SHA). Produces a 160-bit hash.
for further details see: http://docs.oracle.com/cd/B19306_01/appdev.102/b14258/d_crypto.htm#i1002022
Edited by: 972551 on Nov 21, 2012 12:46 PM -
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add Add a flow Monitor/Exporter.
create Add a flow Monitor/Exporter.
delete Delete A flow Monitor/Exporter.
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