VisiLogic V7.0.3 OS V2.1.31 Bugs Fixed (these are fixed in the current version; OS update required)
Operands	Kept their values (MB468 =1 and MB469 = 0) independent of application logic and was not possible to be operated.
Trends (Enhanced models)	R.T.E. after changing curve properties while HMI is not active. When applying changes to trends and curves on Project tree, the whole tree redrawn itself, causing it to collapse or be annoying to users.
GPRS - Enfora modems	If the PLC closes the socket, instead of normally close the socket, it caused socket error. This prevented VisiLogic from returning to Listen mode.
Alarms	Define Alarm description in string 4095 in String Library #2 led to R.T.E.
HMI	Meter variable (V130) – when trying to change decimal point in "Ranges" tab using Up/Down arrows, it changed the Min/Max values instead. When trying to copy element "Timer to ASCII" or to export subroutine which contains this element an error message: "The selection contains elements that reference named constants" appeared and copy/paste was not possible. HMI – Numeric variable - The Text after was not appearing in the HMI element and therefore Fit To Size would cause the size to fit the format 9.99999999 without the text after. HMI – Fonts - After importing displays that contain fonts that already exist in the project – the font handler add the same fonts again. If System fonts were used, then the added fonts are also "system" and cannot be deleted. HMI - LED bar variable – lighted again the first LEDs on higher values, keeping the last few LEDs black. HMI In "color" models (V350/570) there was a possibility to add elements on top of vars. If you draw a variable and then on top of it – for example text element, in VisiLogic it was looking OK, but not in the controller. If HMI module's name was longer than 25 characters, while downloading, RTE occurred. Now HMI module's name can be up to 50 characters. In Vista loaded PC, parameter's text was not visible (black field). Trying to type Cyrillic in String Library or SMS Configuration – the text was messed
TCP/IP	Card Init block - In VisiLogic projects, created with V6.01, after opening Card Init, the values for IP address, Subnet mask and default gateway was messed.
Hardware configuration	V530 project with V200-18-E6B snap In module – after upload HWC data was messed.

VisiLogic V7.0.1 OS V1.002 (B7) Bugs Fixed (these are fixed in the current version; OS update required)
Project conversion, V120-V130	In some cases, conversion hung and did not complete.
Project conversion, Enhanced, String Library	The number of strings in a library of each model is different. This sometimes lead to errors during conversion.
Snap-in I/O module, V200-18-E6b	In Hardware Configuration, the analog input resolution was always Normal.
Data Table: Find row Extended function	There was no option to choose Boolean operand.
Data table using write	If the Write option in the Data Table window was used to set multiple Boolean elements, only the first element stayed set.
Disable View property	When an MB was assigned to Disable View property for Binary text variable, the user would click OK, but would not see the MB in the Properties.
Download project	A project close to 64K in size would sometimes fail to download.
VisiLogic V6.0.1 OS V1.002 (B7) Bugs Fixed (these are fixed in the current version; OS update required)
Trends HMI	Certain projects containing Trends HMI object would automatically run Defrag resulting in a run-time error.
Subroutine Import/Export	Sometimes resulted in a run-time error.
Small HMI Images	Images smaller than 8 by 8 pixels may have -Displayed incorrectly -Influenced other pixels in the same display

OS V1.002 (B05 V570 and V130 only Bugs Fixed (these are fixed in the current version; OS update required)
MF 3	When MF3 held a value other than 0, there was a power-up error To obtain an updated OS: · V570: From VisiLogic, run Update from the web: Help>Check for updates>Operating Systems · V130: Contact support@unitronics.com in order to receive the correct OS version

OS V1.002 (B03), V570 and V130 only Bugs Fixed (these are fixed in the current version; OS update required)

MODBUS, Serial and TCP/IP Read/Write Coils

Read: When a vector of coils was read, the coil immediately after the vector was reset. For example, reading coils 5,6,7 would reset coil 8 in the master. Write: When a vector of coils was written, the coil immediately after the vector was reset. For example, reading coils 5,6,7 would reset coil 8 in the slave. To obtain an updated OS: · V570: From VisiLogic, run Update from the web: Help>Check for updates>Operating Systems · V130: Contact support@unitronics.com in order to receive the correct OS version

VisiLogic V6.0.0 OS V1.002 (B2) Bugs Fixed (these are fixed in the current version; OS update required)
FB PWM	When Duty cycle reached 100% maintained that level for a period of time, and then decreased, the output bit was "stuck" at "1.
HMI Timers, Keypad Entry	When set to format HH:[MM:SS:hh] – 23 was the maximum number that could be entered in HH.
Info mode>Serial	The strings for COM port 3 (V570) were not visible.

VisiLogic V5.2.3 Bugs Fixed (these are fixed in the current version)
Communications>PC Settings>Initialize & Reset	Clicking the Initialize and Reset button did not always carry out the action.

V570/290–C Firmware lower than: O/S 1.1 Build 07
PLC – Failure	If the operator used the touch panel to enter a numeric value (HMI or INFO) while MI 166 = 32, the PLC watchdog was activated immediately when any touch element was pressed.

VisiLogic V5.2.2 Bugs Fixed (these are fixed in the current version)
VisiLogic ‘remains active’	When VisiLogic was closed, some VisiLogic processes remained to be active, and had to be shut down via Windows Task Manager.
Trends	Data Overflow message removed
Upload failure	‘Full Download’ programs could not be uploaded
Find and Replace	‘Find and Replace’ utility did not actually replace operands linked to HMI elements
Memory Requirement message	V570 only: A Compile error message was displayed when the FB memory requirement exceeded 8K—even though the actual V570 memory capacity is 32K.

VisiLogic V5.2.1 Bugs Fixed (these are fixed in the current version)
VisiLogic Shutdowns	This version of VisiLogic should be more stable.
GPRS	Improved GPRS communication.
V570/290-C: SMS Receive	Did not function properly in projects that contained certain other FBs
V570/290-C: Immediate Write to Output	Did not work.
Data Tables	· Part of Project now supports up to 128 KB · Data Tables> File> Memory Requirements> Part of Project tab: Memory usage shown is now accurate, OS update required.
New Compilation Error	"Net Logic too complex, contains Call Subroutine and Load HMI functions".  Such a net should be divided into two or more nets.
Negative numeric variable	In hex/binary base showed “****”.
Float to ASCII String	Did not operate properly.
Numeric Keypad password	Pressing Enter caused an extra character to be added, resulting in an incorrect password.
Keypad Entry	Format X.X was not 'friendly'.
Keypad entry with linearization	Negative numbers were not displayed properly.
V570/290-C: Keypad Entry: Timers	When Timer preset values were changed via HMI or Ladder program, at Power-up values reverted to project values.
HMI Binary Variable, Switch feature	Using 'Switch' caused HMI to freeze on Load Display.
Protocol FB, Serial	“Checksum + ETX” returned an incorrect checksum.
Protocol FB, IP	When configured, INFO Mode showed ERROR.
V290-BW	The PLC would hang when CANbus communication and Virtual Keypad ran at the same time.