LK3U PLC Special register D function description
| Special register D function description | 备注 | ||
| D8000：Monitoring timer setting (default 200) | |||
| D8008：Power failure detection time (set value: 1~100, default 10ms) | |||
| D8010：Current value of scan time (0.1ms) | D8011：Minimum scan time (0.1ms) | ||
| D8012：Maximum scan time (0.1ms) | D8013：RTC clock seconds | ||
| D8014：RTC clock minute | D8015：RTC clock hour | ||
| D8016：RTC clock day | D8017：RTC clock month | ||
| D8018：RTC clock year | D8019：RTC clock week | ||
| D8020：X0-X17 filter coefficient (set value: 0~60ms, default 10) | |||
| D8021：X20-X77 filter coefficient (set value: 1~60ms, default 10) | |||
| D8028：Z0 Index Register Contents | D8029：V0 index register contents | ||
| D8039：Constant scan time (unit: 1ms, default 0) | |||
| D8040：1st activity STL status | D8041：2rd activity STL status | ||
| D8042：3rd activity STL status | D8043：4th activity STL status | ||
| D8044：5th activity STL status | D8045：6th activity STL status | ||
| D8046：7th activity STL status | D8047：8th activity STL status | ||
| D8049：Minimum active STL status | |||
| D8116：first weighing filter times | D8117：second way weighing and filtering | *1 | |
| D8118：Third way weighing filter times | D8119：Fourth way weighing filter | ||
| D8120：First way weighing data low | D8121：First way weighing data high | ||
| D8122：Second way weighing data low | D8123：Second way weighing data high | ||
| D8124：Third way weighing data low | D8125：Third way weighing data high | ||
| D8126：Fourth way weighing data low | D8127：Fourth way weighing data high | ||
| D8139：Number of instructions in execution of HSCS, HSCR, HSZ, HSCT instructions (cannot be greater than 4) | |||
| D8140：Y0 pulse output count register | D8142：Y1 pulse output count register | ||
| D8144：Y2 pulse output count register | D8146：Y3 Pulse Output Count Register | ||
| D8149：CAN master/slave communication timeout time (1=1ms) | D8150：Host/slave station number (0~32) | *2 | |
| D8151：Number of slaves (1~32, default: 8) | D8152：Number of shared registers (1~32, default: 8) | ||
| D8153：CAN communication baud rate (20K~1000K, default: 250K) | |||
| D8156：DSZR, ZRN instruction specifies Y04 clear signal component | D8157：DSZR, ZRN instruction specifies Y05 clear signal component | *3 | |
| D8158：DSZR, ZRN instruction specifies Y06 clear signal component | D8159：DSZR, ZRN instruction specifies Y07 clear signal component | ||
| D8170：Y4 pulse output count register | D8172：Y5 pulse output count register | ||
| D8174：Y6 pulse output count register | D8176：Y7 pulse output count register | ||
| D8182：Z1 Index Register Contents | D8183：V1 index register contents | ||
| D8184：Z2 Index Register Contents | D8185：V2 Index Register Contents | ||
| D8186：Z3 Index Register Contents | D8187：V3 Index Register Contents | ||
| D8188：Z4 Index Register Contents | D8189：V4 Index Register Contents | ||
| D8190：Z5 Index Register Contents | D8191：V5 Index Register Contents | ||
| D8192：Z6 Index Register Contents | D8193：V6 Index Register Contents | ||
| D8194：Z7 Index Register Contents | D8195：V7 Index Register Contents | ||
| D8310：Random number (32 bit) | D8330：DUTY instruction timing clock output 1 counter of scan number | ||
| D8331：DUTY instruction timing clock output 2 counter of scan number | D8332：DUTY instruction timing clock output 3 counter of scan number | ||
| D8333：DUTY instruction timing clock output 4 counter of scan number | D8334：DUTY instruction timing clock output 5 counter of scan number | ||
| D8336：DVIT interrupt input specification Y0-Y3 | D8337：DVIT interrupt input specification Y4-Y7 | ||
| D8340-D8349:High Speed Output Y0 Register | D8350-D8359:High Speed Output Y1 Register | ||
| D8360-D8369:High Speed Output Y2 Register | D8370-D8379:High Speed Output Y3 Register | ||
| D8400：Serial port 1 communication parameter setting | |||
| D8402：RS command sends a data remaining number | D8403：Number of RS commands received | ||
| D8409：RS/MODBUS master communication timeout time (1=10ms, default 500) | |||
| D8400：Channel 1-Communication Format Setting | D8420：Channel 2 - Communication Format Setting | *4 | |
| D8401：Channel 1-Protocol | D8421：Channel 2-Protocol | ||
| D8402：Channel 1-communication error code | D8422：Channel 2 - Communication Error Code | ||
| D8403：Channel 1-Error Details | D8423：Channel 2 - Error details | ||
| D8404：Channel 1 - Step in which communication error occurred | D8424：Channel 2-The step of communication error | ||
| D8407：Channel 1-communication step number | D8427：Channel 2 - Communication step number | ||
| D8408：Channel 1 - Current number of retries | D8428：Channel 2 - Current number of retries | ||
| D8409：Channel 1-slave response timeout | D8429：Channel 2 - Slave response timeout | ||
| D8410：Channel 1-Transmit Delay | D8431：Channel 2 - Transmit Delay | ||
| D8412：Channel 1 - Number of retries | D8432：Channel 2 - Number of retries | ||
| D8414：Channel 1-station station number | D8434：Channel 2-station station number | ||
| D8419：Channel 1-action mode display | D8439：Channel 2-action mode display | ||
| D8405：Connection status of the Ethernet port | D8406：Saving Ethernet Adapter Status | *5 | |
| D8411：Time setting function action result | D8413：Ethernet chip program version | ||
| D8415：Site MAC address | D8416：Site MAC address | ||
| D8417：Site MAC address | D8418：Error code for Ethernet adapter | ||
| D8470：IP address (lower) | D8471：IP address (high) | ||
| D8472：Subnet mask (lower) | D8473：Subnet mask (high) | ||
| D8474：Default router IP address (lower) | D8475：Default router IP address (high) | ||
| D8492：IP address setting (lower) | D8493：IP address setting (high) | ||
| D8494：Subnet mask setting (lower bit) | D8495：Subnet mask setting (high) | ||
| D8496：Default router IP address setting (lower) | D8497：Default router IP address setting (high) | ||
| D8498：IP address save area error code | |||
| D8440-D8449:High Speed Output Y4 Register | D8450-D8459:High Speed Output Y5 Register | *3 | |
| D8470-D8479:High Speed Output Y6 Register | D8480-D8489:High Speed Output Y7 Register | ||
| D8464：DSZR, ZRN instruction specifies Y0 clear signal component | D8465：DSZR, ZRN instruction specifies Y1 clear signal component | ||
| D8466：DSZR, ZRN instruction specifies Y2 clear signal component | D8467：DSZR, ZRN instruction specifies Y3 clear signal component | ||
| *1 weighing function related | |||
| *2 CAN function related | |||
| *3 High speed 8-axis correlation | |||
| *4 MUDBUS function related | |||
*5 ENET network function related LK3U PLC-Communication port pin definition LK3U PLC Supported instructions LK3U PLC Special relay M function description LK3U PLC Special register D function description LK3U PLC High-speed counter instructions LK3U PLC High-speed counter instructions | |||