AS Series Programming Manual Example: _2 After power-on, the module allocation of the above example is as shown below. SR1559 = 2 SR1560 = 4 The order number is counted by the right-side modules connected to the CPU module and then counted by the RTU number. If RTU is disconnected, after reconnected, the system refreshes the SR. SR1559 = 1 SR1560 = 4 2-126 SR number (order) SR1651 (#1) SR1652 (#2) SR1653 (#3) SR1654 (#4) SR1655 (#5) Device code 16#0309 16#0311 16#0212 16#0212 16#0301 SR number (order) SR1656 (#6) SR1657 (#7) SR1658 (#8) SR1659 (#9) Device code 16#0315 16#0302 16#0210 16#0210