Chapter 2 Devices 6. The error log in the PLC SR40~SR161 SR40: The maximum number of error logs which are stored in SR40 is 20. Every error log occupies 6 registers. SR41: The error log pointer points to the latest error log. When an error occurs, the value of the error log pointer increases by one. The range of pointer values is 0~19. For example, the error log pointer points to the fourth error log when the value in SR41 is 3. The time when the errors occur and the positions where the errors occur are recorded in SR42~SR161. The corresponding functions of these data registers are as follows. 7. The download log in the PLC SR227~SR308 SR227:
The maximum number of download logs which are stored in SR227 is 20. Every download log occupies 4 registers. The download actions which are recorded are numbered, as shown in the following table.
2-77 Module Error Time when the error occurs Number Rack Slot ID code Year Month Day Hour Minute Second 1 SR42 High byte SR42 Low byte SR43 SR44 SR45 High byte SR45 Low byte SR46 High byte SR46 Low byte SR47 High byte SR47 Low byte 2 SR48 High byte SR48 Low byte SR49 SR50 SR51 High byte SR51 Low byte SR52 High byte SR52 Low byte SR53 High byte SR53 Low byte 3 SR54 High byte SR54 Low byte SR55 SR56 SR57 High byte SR57 Low byte SR58 High byte SR58 Low byte SR59 High byte SR59 Low byte 4 SR60 High byte SR60 Low byte SR61 SR62 SR63 High byte SR63 Low byte SR64 High byte SR64 Low byte SR65 High byte SR65 Low byte 5 SR66 High byte SR66 Low byte SR67 SR68 SR69 High byte SR69 Low byte SR70 High byte SR70 Low byte SR71 High byte SR71 Low byte 6 SR72 High byte SR72 Low byte SR73 SR74 SR75 High byte SR75 Low byte SR76 High byte SR76 Low byte SR77 High byte SR77 Low byte 7 SR78 High byte SR78 Low byte SR79 SR80 SR81 High byte SR81 Low byte SR82 High byte SR82 Low byte SR83 High byte SR83 Low byte 8 SR84 High byte SR84 Low byte SR85 SR86 SR87 High byte SR87 Low byte SR88 High byte SR88 Low byte SR89 High byte SR89 Low byte 9 SR90 High byte SR90 Low byte SR91 SR92 SR93 High byte SR93 Low byte SR94 High byte SR94 Low byte SR95 High byte SR95 Low byte 10 SR96 High byte SR96 Low byte SR97 SR98 SR99 High byte SR99 Low byte SR100 High byte SR100 Low byte SR101 High byte SR101 Low byte 11 SR102 High byte SR102 Low byte SR103 SR104 SR105 High byte SR105 Low byte SR106 High byte SR106 Low byte SR107 High byte SR107 Low byte 12 SR108 High byte SR108 Low byte SR109 SR110 SR111 High byte SR111 Low byte SR112 High byte SR112 Low byte SR113 High byte SR113 Low byte 13 SR114 High byte SR114 Low byte SR115 SR116 SR117 High byte SR117 Low byte SR118 High byte SR118 Low byte SR119 High byte SR119 Low byte 14 SR120 High byte SR120 Low byte SR121 SR122 SR123 High byte SR123 Low byte SR124 High byte SR124 Low byte SR125 High byte SR125 Low byte 15 SR126 High byte SR126 Low byte SR127 SR128 SR129 High byte SR129 Low byte SR130 High byte SR130 Low byte SR131 High byte SR131 Low byte 16 SR132 High byte SR132 Low byte SR133 SR134 SR135 High byte SR135 Low byte SR136 High byte SR136 Low byte SR137 High byte SR137 Low byte 17 SR138 High byte SR138 Low byte SR139 SR140 SR141 High byte SR141 Low byte SR142 High byte SR142 Low byte SR143 High byte SR143 Low byte 18 SR144 High byte SR144 Low byte SR145 SR146 SR147 High byte SR147 Low byte SR148 High byte SR148 Low byte SR149 High byte SR149 Low byte 19 SR150 High byte SR150 Low byte SR151 SR152 SR153 High byte SR153 Low byte SR154 High byte SR154 Low byte SR155 High byte SR155 Low byte 20 SR156 High byte SR156 Low byte SR157 SR158 SR159 High byte SR159 Low byte SR160 High byte SR160 Low byte SR161 High byte SR161 Low byte Download action Number Downloading the program 1 Downloading the setting of the PLC 2