Design a PLC Ladder program that can make a test of continuity for a connection of 156 pins 78 positive left side pins and 78 negative right-side pins. Push button on/off system, lcd screen (display number 0 or more), switch to start/stop the test. Testing one pair of pins at a time and if there is continuity sound a buzzer and a timer of 2 seconds before passing to the other pair if there is no continuity stop testing. Pairs Start Here Pair Continuitation Left side pin Right side pin Left side pin Right side pin 1 101 40 140 2 102 41 141 3 103 42 142 4 104 43 143 5 105 44 144 6 106 45 145 7 107 46 146 8 108 47 147 9 109 48 148 10 110 49 149 11 111 50 150 12 112 51 151 13 113 52 152 14 114 53 153 15 115 54 154 16 116 55 155 17 117 56 156 18 118 57 157 19 119 58 158 20 120 59 159 21 121 60 160 22 122 61 161 23 123 62 162 24 124 63 163 25 125 64 164 26 126 65 165 27 127 66 166 28 128 67 167 29 129 68 168 30 130 69 169 31 131 70 170 32 132 71 171 33 133 72 172 34 134 73 173 35 135 74 174 36 136 75 175 37 137 76 176 38 138 77 177 39 139 78 178 Design a PLC Ladder program that can make a test of continuity for a connection of 156 pins 78 positive left side pins and 78 negative right-side pins. Push button on/off system, lcd screen (display number 0 or more), switch to start/stop the test. Testing one pair of pins at a time and if there is continuity sound a buzzer and a timer of 2 seconds before passing to the other pair if there is no continuity stop testing. Pairs Start Here Pair Continuitation Left side pin Right side pin Left side pin Right side pin 1 101 40 140 2 102 41 141 3 103 42 142 4 104 43 143 5 105 44 144 6 106 45 145 7 107 46 146 8 108 47 147 9 109 48 148 10 110 49 149 11 111 50 150 12 112 51 151 13 113 52 152 14 114 53 153 15 115 54 154 16 116 55 155 17 117 56 156 18 118 57 157 19 119 58 158 20 120 59 159 21 121 60 160 22 122 61 161 23 123 62 162 24 124 63 163 25 125 64 164 26 126 65 165 27 127 66 166 28 128 67 167 29 129 68 168 30 130 69 169 31 131 70 170 32 132 71 171 33 133 72 172 34 134 73 173 35 135 74 174 36 136 75 175 37 137 76 176 38 138 77 177 39 139 78 178