Download Process CPU User`s Manual(Function Explanation
Transcript
APPENDICES MELSEC-Q Special Relay List (Continued) ACPU Special Special Special Relay after Relay for Relay Conversion Modification M9200 SM1200 M9201 SM1201 M9202 SM1202 M9203 SM1203 Name Meaning ZNRD instruction (LRDP instruction OFF: Not accepted for ACPU) ON : Accepted reception (for master station) • Depends on whether or not the ZNRD (word device read) instruction has been received. • Used in the program as an interlock for the ZNRD instruction. • Use the RST instruction to reset. ZNRD instruction (LRDP instruction for ACPU) completion (for master station) ZNWR instruction (LWTP instruction for ACPU) reception (for master station) • Depends on whether or not the ZNRD (word device read) instruction execution is complete. • Used as a condition contact for resetting M9200 and M9201 after the ZNRD instruction is complete. • Use the RST instruction to reset. • Depends on whether or not the ZNWR (word device write) instruction has been received. • Used in the program as an interlock for the ZNWR instruction. • Use the RST instruction to reset. OFF: Not completed ON : End OFF: Not accepted ON : Accepted ZNWR instruction (LWTP instruction OFF: Not completed for ACPU) ON : End completion (for master station) ZNRD instruction (LWTP instruction for ACPU) reception (for local station) ZNWR instruction (LRDP instruction for ACPU) recep-tion (for local station) Host station link parameter error On indicates that the ZNRD instruction is complete at the local station. OFF: Not completed ON : End On indicates that the ZNWR instruction is complete at the local station. OFF: Normal ON : Abnormal OFF: Normal ON : Abnormal Depends on whether or not the link parameter setting of the host is valid. Depends on whether or not the link parameter setting of the master station in tier two matches that of the master station in tier three in a three-tier system. (Valid only for the master stations in a three-tier system.) • Depends on whether or not the B and W data controlled by higher-link master station (host station) is sent to lower-link local stations (tertiary stations). • When SM1208 is OFF.......B and W of host station is sent to tertiary stations. • When SM1208 is ON.........B and W of host station is not sent to tertiary stations. • Set to ON not to match B and W of the higher and lower links. (When SM1209 is ON, the link parameters of the higher and lower links are not checked.) • When SM1209 is OFF, the link parameters of the higher and lower links are checked. Depends on presence or absence of the link card hardware error. Judged by the CPU. OFF: Normal ON : Abnormal Depends on presence or absence of the link card hardware error. Judged by the CPU. SM1204 M9205 SM1205 M9206 SM1206 M9207 SM1207 Link parameter check results OFF: YES ON : NO SM1208 Sets master station B and W transmission range (for lower link master stations only) OFF: Transmits to tier2 and tier 3 ON : Transmits to tier2 only M9209 SM1209 M9210 SM1210 M9211 SM1211 M9224 SM1224 M9225 SM1225 M9226 SM1226 M9227 SM1227 M9232 SM1232 APP - 15 Link parameter check command (for lower link master stations only) Link card error (for master station) Link module error (for local station use) • Depends on whether or not the ZNWR (word device write) instruction execution is complete. • Used as a condition contact to reset M9202 and M9203 after the ZNWR instruction is complete. • Use the RST instruction to reset. OFF: Not completed ON : End M9204 M9208 Applicable CPU Details OFF: Executing the check function ON : Check non-execution OFF: Online ON : Offline,station-to-station Link status test, or self-loopback test OFF: Normal Forward loop error ON : Abnormal OFF: Normal Reverse loop error ON : Abnormal OFF: Not being executed Loop test status ON : Forward or reverse loop test execution underway OFF: RUN or STEP RUN Local station status operation status ON : STOP or PAUSE status QnA Depends on whether the master station is online or offline or is in station-to-station test or self-loopback test mode. Depends on the error condition of the forward loop line. Depends on the error condition of the reverse loop line. Depends on whether or not the master station is executing a forward or a reverse loop test. Depends on whether or not a local station is in STOP or PAUSE mode. APP - 15