Hi:Having 16 Fisher DVC6200p PA positioners in our facility in UAE. Facing problem with new positioner SwVer: 1.5.1.2.0: Have Siemens Redundant S7400H PLC. Problem when making online modifications in Hardware (Master and StandBy PLC changeover) all new Fisher Positioners are losing control from Master PLC and need to power reset (positioners) to put back in operation. This problem is not happening with old version : 1.4.1.2.0. We have 6 Old Positioners with Version 1.4.1.2.0 and 10 positioners with new version 1.5.1.2.0; already informed local distributor. Need to solve this problem ASAP; any suggestion?