12 
9.7.10 Clock generator .................................................................................... 135 
9.7.11 Event counter (Up, Down and Up and down) ....................................... 136 
9.7.12 Fast shut off and Fast shut off with bypass .......................................... 139 
9.7.13 Edge detection ...................................................................................... 144 
9.7.14 Binary encoder ..................................................................................... 145 
9.7.15 Binary decoder ..................................................................................... 148 
9.7.16 Log generator ....................................................................................... 151 
9.7.17 Routing 1:N ........................................................................................... 153 
9.7.18 Routing N:N .......................................................................................... 154 
9.8 Application-specific function blocks............................................................... 155 
9.8.1 Reset ...................................................................................................... 155 
9.8.2 Restart .................................................................................................... 156 
9.8.3 Off-delay timer ........................................................................................ 158 
9.8.4 Adjustable off-delay timer ....................................................................... 159 
9.8.5 On-delay timer ........................................................................................ 160 
9.8.6 Adjustable on-delay timer ....................................................................... 161 
9.8.7 EDM (External device monitoring) .......................................................... 162 
9.8.8 Valve monitoring ..................................................................................... 163 
9.8.9 User mode switch ................................................................................... 167 
9.8.10 Switch synchronization ......................................................................... 169 
9.8.11 Error output combination ...................................................................... 172 
9.8.12 Ramp down detection ........................................................................... 173 
9.8.13 Frequency monitor ................................................................................ 178 
9.8.14 Start warning ......................................................................................... 182 
9.9 Function blocks for dual channel evaluation ................................................. 187 
9.9.1 Single-channel evaluation ...................................................................... 187 
9.9.2 Dual-channel evaluation (1 pair) and discrepancy time ......................... 188 
9.9.3 Double dual-channel evaluation (2 pair synchronization evaluation) and 
synchronization time .............................................................................. 190 
9.9.4 Emergency stop ...................................................................................... 192 
9.9.5 Magnetic switch ......................................................................................  193 
9.9.6 Light curtain monitoring .......................................................................... 194 
9.9.7 Safety gate monitoring ............................................................................ 195 
9.9.8 Tolerant dual channel monitor ................................................................ 197 
9.9.9 Two-hand control type IIIA ...................................................................... 202 
9.9.10 Two-hand control type IIIC.................................................................... 202 
9.9.11 Multi operator (multiple two-hand control) ............................................ 204 
9.10 Function blocks for Parallel muting, Sequential muting and Cross muting 
 ....................................................................................................................  206 
9.10.1 Overview and general description ........................................................ 206 
9.10.2 Parameters of the function blocks ........................................................ 209