diff --git a/scripts/sch3.gd b/scripts/sch3.gd
index d69a2b9..c0dbf7b 100644
--- a/scripts/sch3.gd
+++ b/scripts/sch3.gd
@@ -69,7 +69,7 @@ class Sch3 extends unit.Unit:
             step_fsm = Sch3Fsm.WRITE
         elif step_fsm == Sch3Fsm.CONNECT:
             try_connect()
-            mbc.request_read(base_input_address, regs_input_count)
+            mbc.request_read_input(base_input_address, regs_input_count)
             cmd_state = CmdState.WAIT
             tx_tick = tick
 
@@ -95,7 +95,7 @@ class Sch3 extends unit.Unit:
             if not online:
                 online = true
                 emit_signal('line_changed', online)
-                step_fsm = Sch3Fsm.WRITE
+                step_fsm = Sch3Fsm.READ_INPUT
                 tick_fsm_delta = request_period
         else:
             if cmd_state == CmdState.WAIT: