Email from Mr. Sing Madden: Toshiba
Byron San,
Glad you got things working, and was able to recover the program. Pertaining to the instructions of the ladder, the IN instructions means to read the input immediately, and the W->W is a register to register move statement. So for your example
02|----| |------|^|---[ IN [2 ] XW02 ] - [XW03 W->W D0005]--------------------------------( R002 )---|
X000 R120
When X000 is On and there is a transition from Off to On, 2 registers beginning at XW02 is immediately read, and the data from register XW03 is move into data register D0005, and R002 comes on, showing completion.
03|----| |------ [D0005 > D0001]-[D0001 - D0005 > D0006]------------------------| / |------------( )---|
3|R002 R015 R003
With R002 On, the data in D0005 is compared to data in D0001, and the difference between D0001 and D0005 is stored in D0006, and with R015 normally close, R003 comes On, showing completion.
I don’t have manual on MPI21 card, but I have attached the EX100 users manual that shows the some description of the modules, also it gives examples and explanations of the functions that are available in EX100. I also attached the EXPPD250 software manuals, that also explains some of these functions that are available.
As I have mentioned to you before, these older systems are long gone, and you should encourage customers to transition to our new platform (see attaché NV type 1 light brochure). Migration is not very difficult (hardware foot print is similar) and program translation is mostly retyping in a windows base software tool with modern IEC61131-3 languages. Thanks in advance
Sing Madden, MSE
Instrumentation Engineer
Field Service Department
Toshiba International
713 466 0277/800 231 1412, ext 26727
[email protected]