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Important Product Information 51

GFK-1671P

Open Issues and Problems

ID Description

CR72374

Store error for IL folder between 17.3 and 18K.

Details: Storing an IL file that is greater than 17.3K but less than 18K, to a VersaMax Micro

PLC, may cause the PLC to get disconnected from the Programmer. Following this loss of

communication, the following message is displayed: “Store Error. 0x6D02 – Unknown

TargetComm Error”. Storing an IL folder that is less than 17.3K or storing a ladder folder

with a program size between 17.3 and 18K is permitted. If an IL file greater than 18K is

stored, an error is expected since this exceeds the Micro’s memory limits. IL programs require

additional processing time due to the fact that IL programs internally generate many Jump

statements upon compile time. This processing takes additional time, which causes the

communication link with the programmer to time out.

Resolution: Increase the programmer default request timeouts from the default to 30 seconds

to give the PLC enough time to complete the processing of the large IL program.

CR72856

Verify of %AI fails after a successful store and load on VersaMax Micro.

Details: Verify for %AI reference tables fail after performing a successful store and load

operation on H/W, Logic and Stored/Override values, of a VersaMax Micro PLC because the

potentiometer (analog timers) on the Nano/Micro (including Series 90 Micro) control the

values at %AI0016 and %AI0017. The values of these locations will change slightly due to

slight variations in the analog signal created by the potentiometers to the A to D converter in

the Nano/Micro.

Resolution: To avoid the verification failure, do not select verification of stored/override

values when using the Nano/Micro. Verification of stored values can be achieved by manually

observing reference table values in RVT when on-line.

CR69824

Counter Status parameter ignored for PWM or Pulse Train configuration.

The Counter Status parameter in the Channel tabs of Nano/Micro configuration will be ignored

if the Channel Function is set to PWM or PTO modes.

Drum Sequencer support not available for VersaMax Nano/Micro CPUs with firmware

revision 1.x

If you attempt to store a logic with the Drum Sequencer using VersaPro 2.03 to a VersaMax

Nano/Micro PLC having firmware revision 1.x, the PLC will log a fatal fault and go to stop-

faulted mode. Drum Sequencer support is available only with Nano/Micro firmware revision

2.0. You will have to upgrade the firmware if you need to use the Drum Sequencer function.

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United Process Versapro Betriebsanweisung Seite 51