Devantech RYL08

Daniel cant seem to get this sketch to compile

void setup(){
Serial.begin(9600);
}

void loop(){
Serial.print(relay_address1, BYTE); // send relay module address
Serial.print(100, BYTE); // All relays on

Serial.print(relay_address1, BYTE); // send relay module address
Serial.print(101, BYTE); // Turn relay 1 on

//etc

Serial.print(relay_address1, BYTE); // send relay module address
Serial.print(110, BYTE); //All relays off

Serial.print(relay_address1, BYTE); // send relay module address
Serial.print(111, BYTE); //Turn relay 1 off
//etc
}
get this error relay-address was not declaired
not shure where to go next
here r boards relay adressesCommands for Serial

Command
Action

dec hex
90 5A Get software version - transmits a single byte back to the controller containing the software revision
91 5B
Get relay states - transmits a single byte back to the controller, bit high meaning the corresponding relay is powered

92 5C Set relay states - the next byte sent to the command register will set all relay states, All on = 255 (11111111) All off = 0
100 64 All relays on
101 65 Turn relay 1 on
102 66 Turn relay 2 on
103 67 Turn relay 3 on
104 68 Turn relay 4 on
105 69 Turn relay 5 on
106 6A Turn relay 6 on
107 6B Turn relay 7 on
108 6C Turn relay 8 on
110 6E All relays off
111 6F Turn relay 1 off
112 70 Turn relay 2 off
113 71 Turn relay 3 off
114 72 Turn relay 4 off
115 73 Turn relay 5 off
116 74 Turn relay 6 off
117 75 Turn relay 7 off
118 76 Turn relay 8 off
160 A0 1st byte in sequence to change serial address
165 A5 3rd byte in sequence to change serial address
170 AA 2nd byte in sequence to change serial address