Lauer PCS 950 Operation Console Application Guide

TIMER: 3-digit BCD time value+time base (0-3).

Variables can be used in text (idle page, operation page, message page), with a maximum of 8 variables per line. The actual value (ACTUAL) is read-only, while the preset value (PRESSET) and preset P-value (PRESSET-P) can be modified on the operation page. PRESSET-P is password protected (bit 7 controls editability).

4.2 Text and Page

The system includes the following text types:

Idle text (0~127): Displayed when there is no operation.

Operation Text (1-127): Operation page, which can include variable editing.

Message text (0~1023): associated with message bits, divided into three levels: information, warning, and fault.

Historical text: stored in the history buffer.

Printer Text: Message Printer and Operation Printer.

Help text: Press the<HLP>key to display, up to 32 lines.

The status page (upper area) and soft key row (lower area) can be defined separately and selected through W35. The middle area of the operation page displays the content corresponding to the current priority.

4.3 Priority Management

The system has 8 priorities (0~8), and only one is displayed at a time, but multiple priorities can be activated simultaneously. Priority from low to high:

Idle priority (display idle text)

Operation priority (operation page)

Information priority (information message)

Warning priority (warning message)

Fault priority (fault message)

Historical priority (historical display)

Recipe Manager (Reserved)

Communication error priority (automatically triggered)

Offline menu (enter by pressing HELP+CLR)

PLC can suppress (prohibit display) a certain priority through bits 8-11 of command word W36. For example, message interruptions can be temporarily suppressed while the operation page is being edited. The highest priority activated and not suppressed obtains display rights. The currently displayed priority number is fed back to the PLC in bits 12-15 of W17.

4.4 Messages and Logs

The message is triggered by the PLC setting message area (W41~W104, a total of 1024 bits). Each message can be assigned priority (information/warning/fault) and deletion mode (1-5):

PLC deletion: Reset the bit and it will disappear.

Manual deletion+reset bit: Press CLR to clear, and the PLC bit is reset at the same time.

Manual deletion (no reset bit): Press CLR to clear only the display, PLC bit needs to be reset separately.

Can only be deleted when the bit is 0: CLR is only valid when the PLC bit has been reset.

Confirmed deletion: The message flashes, stops flashing by pressing CLR, and is only deleted after the bit is reset.

Record the time of arrival, departure, and confirmation when a message enters, and store it in the history buffer (128 records) and the message printer buffer (1024 records). PLC can control printing tasks and pointer adjustments through W39. The history display is activated through W36 bit 1 and can be viewed by scrolling.

4.5 Timer and Running Hours

8 timers (W13 bits 0-7 feedback status), each with 8 cams (switch time pairs), can set the daily cycle ON/OFF time (hours, minutes, seconds). If the ON time is equal to the OFF time, it will be disabled; If ON<OFF, it is valid within the day; If ON>OFF, it is valid across midnight. The timer parameters can be modified online on the operation page.

The running hour counter (internal variable BETR_SD_iST) only runs when communication is established and W36 bit 2 is set to 1. It is stored in non-volatile RAM and can be preset.

Detailed explanation of data word communication

PCS and PLC exchange information through up to 256 data words (W0~W255). Different drivers may adjust the specific layout, but the general structure is as follows:

5.1 System Area (W0~W3)

W0~W2: Internally reserved for driving.

W3: Communication error word (see driver manual for specific meaning).

5.2 Status Area (PCS → PLC, W4~W19)

W4~W5: Press the key positions (F1~F20, control keys, numeric keys, etc.). When the button is pressed, the corresponding position is 1.

W9~W12: Time and date (year, month, day, week, hour, minute, second, BCD format).

W13~W17: PCS status. W13 bits 0-7 represent the timer status; Bit 11 indicates whether there are messages in the historical buffer; Bit 12 represents the historical clearing response; W14/W15 are printer old/new message counts; W16 is the activated priority bitmap; W17 is the current display priority number and text number.

W18~W19: preset value status. The high byte of W18 is the address of the newly modified preset value, and the low byte is the number of bytes written (0 represents the BIT variable, 2 represents 16 bits, 4 represents 32 bits); W19 is a bit mask (used for BIT variables to indicate which bit has been modified).

5.3 Command Area (PLC → PCS, W20~W40)

W20~W27: LED control. The green and yellow LEDs of each key are controlled by two bits to indicate their status (OFF, ON, flashing, reverse flashing). W20 green, W21 green flashing, W22 yellow, W23 yellow flashing (F1~F10); W24~W27 correspond to F11~F20.

W34: Work area bitmap number (bit 7=1 to enable dynamic switching).

W35: Status page number (high byte) and soft key line number (low byte).

W36 (Command Word A): Priority enable/suppress bit (bits 8-11 respectively suppress operation/information/warning/fault); Bit 12 allows for historical display; Enable offline menu for position 15; Position 3 allows alarm relay; Bit 2 starts running hour counter; Bit 0 synchronous clock (write 1 to trigger one-time synchronization).