JerryH
Member
Is there any difference between a 1747-L543C Series C FRN 3-6 processor and a 1747-L542B except the L543 has 64k memory and the L542 has 32k memory?
After upgrading to the L543 since we were running out of memory on the L542 we are having strange issues interfacing with a CKD Absodex. Seems like the interface bits that used to come on in sequence are coming on now in the same scan. The start bit is delayed with a 0.01 timer set at 2 after the program select bit comes on but they both appear to come on in the same scan now. This is causing errors on the Absodex controller that we didn't have before.
Does the L543 do anything differently from the L542?
Jerry
After upgrading to the L543 since we were running out of memory on the L542 we are having strange issues interfacing with a CKD Absodex. Seems like the interface bits that used to come on in sequence are coming on now in the same scan. The start bit is delayed with a 0.01 timer set at 2 after the program select bit comes on but they both appear to come on in the same scan now. This is causing errors on the Absodex controller that we didn't have before.
Does the L543 do anything differently from the L542?
Jerry